The Closest Planet Outside Our Solar System Is Almost Within Reach | Proxima Centauri
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- เผยแพร่เมื่อ 3 มิ.ย. 2024
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Credits:
Writer: Julia Masselos
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References:
Kervella, P., Thévenin, F., & Lovis, C. (2017). Proxima’s orbit around α Centauri. Astronomy & Astrophysics, 598, L7 | arxiv.org/abs/1611.03495
F. Feng, H. R. A. Jones, Was Proxima captured by Alpha Centauri A and B?, Monthly Notices of the Royal Astronomical Society, 473: 3, P: 3185-3189 (Jan 2018) | doi.org/10.1093/mnras/stx2576
Are Proxima and Alpha Centauri Gravitationally Bound? Jeremy G. Wertheimer et al. Astron.J. 132 (2006) 1995-1997 | arxiv.org/abs/astro-ph/0607401
The Far Distant Future of Alpha Centauri, Beech, M. Journal of the British Interplanetary Society, vol. 64, p. 387-395
(2011)
J. Voûte, A 13th Magnitude Star in Centaurus, with the same Parallax as α Centauri, Monthly Notices of the Royal Astronomical Society, Volume 77, Issue 9, July 1917, Pages 650-651, doi.org/10.1093/mnras/77.9.650
Rakesh K. Yadav et al 2016 ApJL 833 L28 | dx.doi.org/10.3847/2041-8213/8...
#astrum #astronomy #space #proximacentauri #exoplanets #stars #solar
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You don't even know for sure what's there. Would be cool to have another Earth right next door though.
have you considered the possibility of some life forms evolving to absorb radiation as food? like plants with sunlight?
@AstrumSpace, No thanks, I would rather see you answer some of these comments.
@@NeostormXLMAX Don't hold your breath waiting on an answer.
Proxima B is a shift in consciousness!! World peace and enlightenment!! 😇 Dog planet!! 🐶 🐾 🎾
We’re stars!!⭐️ We’re the universe dreaming and awakening!! 🛌
The 3 Body Problem represents our gut brain, 🍱 heart,❤️ and mind!! 🧠
The moon is a black hole!! 🕳️ A neutrino!! The planet is a colonized moon!!😇🌍👽 The sun is a shapeshifter!! 🌞
Are you and I sculpting together as a team or as individuals??? 🧑🎨 Using the moon as a tool!!! 🪨 The Sun is the eye!!👁️
I like the word grinder!!!😮 We’d be Bumping and Grinding!!😂
The Earth is like a refrigerator and the atmospheric pressure is melting or defrosting the stars above, as if they’ve been in the freezer!! 🥶
We could be stars from above aka heaven, melting everything from above, as well!! Like a River Running Through It!!! 🌊🌊🌊🌊🌊
Unlocking a Secret Garden!!🤫 An Oasis!!!🏝️ 🏝️🏝️🏝️🏝️
Flowing!!! It helps a lot to flow!!!🌊🌊🌊🌊🌊🌊 Letting go, so we can concentrate more and work on our project!! Heaven On Earth!!🌍 👼
Flowers!! 🌺 🌸 💐 and Flow-Ers!!🌊🌊🌊🌊🌊
I know energy is still impurrtant!! 😻
And of course imagination!!! Love!!!💗 🐶 🎾 🧶 🐈⬛
To create heaven On Earth, the galaxies collide!! 🌌 Twin flames connect!! 🔥 🔥 We’re creating quantum entanglement!! Ghost particles merging, becoming more like the Stay Puft Marshmallow Man!!👻👻👻👻👻👻👻👻
The universe is still the Earth!!⭐️🌍⭐️ We’re seeing it from the insides!! 🕵️ Like we’re inside a volcano 🌋 or wishing well!! The stars and galaxies are like coins!!🪙
Everything and everyone has been our teacher!!👩🏫
you'll note the furthest craft from earth, voyager 1, is only 1 light day from earth after decades of being in flight.
Yes. And ten years earlier, there was a starship planned, SS Orion, which would already have returned a decade ago. The planned crew of 200 would have been reduced to 20, though., because of the amount of supplies. That is already a critically small crew, for a 45 year mission. Also, in the 1970s, politics would never have allowed women in such a mission! Better they had just build the ship and put the whole congress inside.
I hold the opinion that we will conquer trans lumen speeds to reach there in weeks rather than centuries as soon as we shake off the myopic version of gravity which leaves our finest engineering minds fighting gravity rather than manipulating it. Our problem is circular in that we are not researching what we deem impossible.
@@MichaelWinter-ss6lx If politicians would be sent on a long journey on a starship, they would perhaps start fighting and placing borders insode the ship. "Due to not flushing, the minister of the cantina is not allowed to enter the restrooms" - president of the toilets. "We, the liquid nation of the water filtration room declare independence from the people's republic of the reactor control centre."
@@MichaelWinter-ss6lx It would be nice also if could they fit the UK parliament as well in to this trip to nowhere as the people there serve no purpose that anyone can see?
Yes - and that the graphic used at 0:14 is totally off scale and misleading. This is the first time, i have to complain about something on Astrum, but since it's very relevant to the topic of the video, i feel i need to point it out.
'Only four light years away ', definitely a 'glass half full', statement.
Very, very half full….😂😂😂😂
Who cares!
😂those are 40 billion kilometers
The glass is always full, seeing as air is matter as well as the liquid. Just sayin'.
@@just_kos99Clever statement lol
"What do you mean 'you've never been to Alpha Centauri'? Oh for heaven's sake, Mankind, it's only four light years away you know! I'm sorry, but if you can't be bothered to take an interest in local affairs, that's your own lookout."
- Captain Prostetnic Vogon Jeltz, from _The Hitchhiker's Guide To The Galaxy_ by Douglas Adams.
only 4 light years? Road Trip!
Where we're going, we don't need roads. - Doc Brown
I’ll ride my motorcycle there!
@@user-rv8gn5qf3o I’ve almost got that many miles on my pickup truck.
Going at ¼ of the light speed we could be there in just only a dozen of years!
@@user-rv8gn5qf3o my shadow could get there in maybeeeeee 500,000 years
1 light second = 300,000km. There are 126,144,000 seconds in a 4 years. The distance we would have to travel is 3.78432*10^13 km. Voyager 1 travels at about 30km/s.
At the rate of voyager, it would still take ... 40,000 years.. Hard to say that's "within reach".
I was thinking the same and trying to work out the math. Incredibly long time with current tech.
I'm just going to have to take your word for the math, but it doesn't take a genius to figure out, we ain't gonna make it! You can beam me up now Scotty... Scotty?
Dang...😣
40,000 years to reach an 'Earth-like' planet. I think the only earth-likeness is that it is around the same size. Flairs don't do anything for its hospitability.
4000 years at the speed of the Parker solar probe (ofc if it manages to maintain the high speed)
Any such travel would do better at constant acceleration (like 1g) than constant speed. So it'd have to wait until we have a means to do that, presumably using some sort of fuel from the interstellar space, perhaps hydrogen for fusion. So, not this week, but, extrapolating the technology and wealth gains of the last millennium, maybe this millennium.
Something people don't often consider is that space isn't quite empty. A sub-light interstellar voyage would be lucky to ever make it there. Any particle intercepting it would be like a bomb.
Unless you warp space in front of you.
Not if you have shields at full power 😉
@@skibum6220no shield will ever stop anything even a grain of sand near the speed of light
space isn't empty, no, but it is absurdly vast. So much so that the chances of hitting anything more than dust is exceptionally unlikely. That said most ships will need shielding from both radiation and dust essentially wearing down the ship in mid flight, like a shuttle burns up in re-entry, except much much slower. This can be done by storing your water in the front of the ship to absorb radiation and by adding physical armour to the front of the ship for the dust. Its already been calculated by several papers and made for interesting reading
@@jamiemobilerepairnow5968 at sub light speed even dust hit like tons of atomic bomb no physical shield will be able to withstand such energy concentrated in a small point
Those darn trisolarians
Fun part is, by the time they arrive, 29k years from now, it will be only 3ly🤗
more like bisolarians they are lucky not to have 3 stars
@NeostormXLMAX, didn't you watch the video? Of course its three stars.
@@NeostormXLMAXsomeone hasn't been paying attention
“I will take over the entire Tri-Solar Area!”
As we continue to study things that will be a long time in the making, just imagine centuries from now the likelihood that things like Hubble, JWST, etc will be thought of in the same regard that Galileo, Copernicus, Oumuamua, etc are thought of now. We are somebody's ancient history in the making, maybe in our own memories or maybe a discovery made by a civilization far beyond our own stars. We may still be here for that latter part or we may be the equivalent to someone's ancient Egypt either here at home or from afar.
I think about this a lot. Even though I lack faith in the supernatural, and the historical accuracy of the texts, the idea that people and their ideas and visions from thousands of years ago shape our world, tells us about our own possibilities and nature.
Or we could be the next dinosaur bones on display in a museum for whatever life evolves after humanity dead ends...
maybe if in the meantime we dont obliterate ourselves.
In a few centuries our descendants might look back on us the same way we see the age of discovery in the 1500s or 1600s when new continents and islands were discovered (Antarctica was only discovered in 1820).
When humans have already settled on the moon, Mars, Ganymed, Callisto, Titan, maybe other objects and maybe already sending people to Alpha Centauri (if we manage to achieve 10 % the speed of light it would take like 45 years, so achievable within a human lifetime), they will look back at the pioneers of the 20th and 21th century who did the research and initial technological development necessary for this.
Maybe the Apollo landing sites or the Mars rover landing sites will be declared cultural heritage and will become like tourist attractions for moon/mars inhabitants to visit.
In a few centuries our descendants might look back on us the same way we see the age of discovery in the 1500s or 1600s when new continents and islands were discovered (Antarctica was only discovered in 1820).
When humans have already settled on the moon, Mars, Ganymed, Callisto, Titan, maybe other objects and maybe already sending people to Alpha Centauri (if we manage to achieve 10 % the speed of light it would take like 45 years, so achievable within a human lifetime), they will look back at the pioneers of the 20th and 21th century who did the research and initial technological development necessary for this.
Maybe the Apollo landing sites or the Mars rover landing sites will be declared cultural heritage and will become like tourist attractions for moon/mars inhabitants to visit.
Unfortunately for all the challenges we're looking at to try and make a probe fast enough to get there in a "reasonable" amount of time, that's not actually the biggest hurdle. The biggest hurdle is getting the data back to Earth. We're talking about a distance so large that the energy output of an entire star can't be seen without a telescope, and we want to try and send a beam of data that same distance.
The beam divergence alone is a problem (we have trouble with that just to the edge of our solar system), but we also need that beam to be distinguishable from all of the radiation the star itself is sending our way, and we're expecting to have enough power to do that in a swarm of millimeter-scale probes? There ain't going to be a convenient 100GW laser array sitting around waiting to help us out when we get there.
I'm not going to say its impossible but it's a hell of a lot more challenging than people seem to recognize. Propulsion is only the start of the journey.
Thanks for explaining this, I also was wondering how a signal could be accurately aimed back to Earth
People also don't often realize either what it would take to even get a fast ship up to speed and slowed back down again. Even if theoretically we could travel at 50% light speed (which is way far off if even possible) it wouldn't simply just take 8 years to travel 4 light years in distance, it would take nearly double that time as even a very advanced ship would take time to reach top speed and slow back down. Not to mention even if a vessel could instantly hit speed then stop on a dime, every occupant of that ship would be torn apart by the g forces.
@@digitalfootballer9032 > People also don't often realize either what it would take to even get a fast ship up to speed
I think most people realize that - at least most people who think about interstellar travel do.
> and slowed back down again
This one definitely not. People tend to think in terms of cars - gas to speed up, brakes to slow down. It's all too easy to forget there's no friction in space and you need to hit the "gas" approximately the same amount in both directions (less on the slowing down side as you don't need to account for the fuel you burned speeding up, but within ballpark of the same).
Don't forget though that we've already done all that when we put landers on mars (and to a lesser extent the moon). I wouldn't expect the average uninterested layperson to understand, but at this point most people who have an interest in rocketry knows that you need to increase and decrease speed in a vacuum. They might not realize how much of that is done via gravity assists within our solar system, but they probably have a vague idea.
The data transmission problem though is much less known. We all know that the further you go, the longer it takes. Most people understand that a signal sent from 4ly away would take 4 years to arrive. The beam divergence and power loss are things people don't really think about because they're "mostly" not a problem within the solar system - the distances are short enough and the DSN sensitive enough that as long as a beam is directed in the direction of Earth it'll generally be picked up.
The only real troublesome ones are the voyagers due to the fact that they're so far beyond their design specs (as in literal distance) that the beam divergence is a concern, yet they still manage to get signals back to us (New Horizons has the same problem of course, but it was designed with the expectation that it might be going to the edge of the solar system, and has an extra three decades of transmitter tech upgrades to boot, so its signals are not as difficult to pick up... yet).
Basically, we've never really had to think about it too much so people don't. We'd have to start thinking about it a lot more when we're going to an entirely new star (of course "we" is overly inclusive - people who are serious about the tech rather than the "possibilities" are well aware of these issues and they'd absolutely be getting involved long before such a mission becomes a reality).
> every occupant of that ship would be torn apart by the g forces
This one we luckily don't have to worry about for a good long while yet. We're not going to be sending occupants on an interstellar mission for a long, long time. We're still trying to figure out how to just send probes (of course when we're talking about a velocity jump of 0.5c, the probes would be just as squishy as people - then again so would the ship itself!)
push some wifi extenders out the back every once in a while
I think the idea of the swarm is they would act as a relay. You don't have to beam the signal back to Earth. Just to the next closest probe.
In galactic scale terms...4 light years is right next door. In human scale, it might as well be on the other side of the universe...considering the tens of thousands of years it would take us to get there using current propulsion methods
except we have theorhwxti clal 10% +ls craft which wouldbe 40 yrs
@@0011peace good luck squeezing 40 yrs worth of consumables (80 yrs worth, if you want a return trip) onto that craft...or finding a crew willing to spend the rest of their lives in a tin can...never to see Earth or anyone they know ever again
Keep in mind that at whatever speed we are capable of, that any manned vessel would have to accelerate and decelerate gradually or the occupants would be pulverized into mush. So at whatever top speed we can reach, you can't divide the distance by that amount, it would be more like double the amount of time. For example if you built a vessel that could traverse 4 light years distance in 100 years at top speed, it would take closer to 200 to actually travel the distance as the ship would not instantly hit top speed then stop on a dime at the destination.
Humans have done great things I'm sure we'll find a way to
What makes them so special is... that they are the closest planets and stars that we can actually observe. And the more we do, the more "special" they become.
Thanks. I don’t need to watch the video now but I will.
@@matthewboire6843
This guy is usually just waffling nonsense on top of old space footage. So I did not.
@@captain_context9991Yes. Its commentary on space footage. Why are you whining about it?
@@OzymandiasWasRight
Because its a whole lot of nothing.
@@captain_context9991You commented on the video before watching it, didn't watch it, and are now engaging in a dialect about the spamminess of TH-cam (gotta get that 1 upload for Friday;)
Fascinating... You might say, you're being a real Polaris 😂😅 Anyone else looking forward to Beetlejuice Betelgeuse? (Shhhh... Say it three times and it goes supernova)
A 2021 study lead by Ekaterina Ilin (Leibniz Institute for Astrophysics Potsdam, Germany) presented evidence that M dwarf flares tend to emanate from their polar regions, possibly sparing close in planets from direct hits. Their initial data was taken from a small sampling of M dwarf stars from TESS observations, and further studies showed that this may well be the norm. (from Universe Today 8/7/21)
ngl as a german im somehow questioning why nearly the mayority of scientific stuff and inventions comes from us.. its like we as german are "special"
@@semiramisubw4864pls don’t start another world war
@@semiramisubw4864 Keep up the good work!
Trisolarians!
I know i can't be the only one who goes to sleep with these videos in the background. Its soothing, relax and it lets your mind calmly wonder
Ohh yes, I sleep with these videos playing in background almost every night. Also, videos by channel "History of universe".
@@apurvabhatnagar2772 awesome stuff 🙌
Me too about this channel, Entire history of the universe and also Sea is great for drifting off in wonder to 💫
Only 4 lightyears is only 23.530.780.243.378,67 miles away.
It astonishes me how many commenters seem to have stopped a good five minutes before the end of the video. Yes, at CURRENT best estimates, or using Voyager as the "standard speed," it would take 65,000 years. BUT. What he's talking about with Breakthrough Starshot is something MUCH faster than our current best! Granted that it really is a long shot too, because the resources and tech just don't exist right now. But still: twenty years to get a probe there IS "within reach."
Getting people there? Wellllll... There are quite a few problems in our way for THAT. Not least of which is the plain fact that humans cannot settle in space. Yet!
But I love seeing this discussed. I recall lots of sci fi short stories speculating about what it would be like on a planet with flare star primary; and Starshot's "push it with lazers" is right out of Niven and Pournelle, almost exactly like their Light Sails idea.
We might not even make Mars before we destroy ourselves. Anything beyond that is pure fantasy.
I don't understand how people are using voyager as a benchmark. It wasn't built to do it nor is it remotely close to anything we can do now. Like bro it still uses plated wire memory.
@@stephenschroeder6567let’s face it, America brings their guard down and focuses on science only, what do you think will happen to the United States?
@@mryellow6918 porque hasta la fecha la voyager es la nave fabricada por el ser humano que viaja mas rápido por el espacio, por eso.
10:00 maybe the best editing of video, music and narration you have ever done. Takes me somewhere... special of feeling awe
Giving temperatures in Celsius and Fahrenheit would be appreciated by many.
It's the San-Ti isn't it?
Hope not 😂
Idk maybe
You are bugs.
Hahaha
The Sophons are watching
With the AB binary so close to Proxima Centauri (only about 3% further away) and -- importantly -- two sun-like stars, why not focus on the exoplanets there? Seems like a much better ROI for exploration than the hostile, marginal Proxima Centauri exoplanets.
Three body problem. Planetary orbits unlikely to be stable.
It might be that we haven't found exoplanets orbiting the two main stars, but only around Proxima. Thus, the interest.
Can you do a video on astronomical navigation please. Cover within the solar system, what would be involved in navigating to Alpha Centauri and then beyond that. How close to the galactic centre could an astronaut get? Energy considerations?
An astronaut could get really close to the galactic center
Forget about AlphaCentauri. There is too little known of interstellar navigation. We can't even fly to the moon any more. And there we only need to know the exact landing spot 3 days in advance. How will we know exactly where the next star is in ~20000 years!?!
So the fastest thing we've ever put into space is voyager 1.
At 40k per hour, and If we count each generation as 15 years; it will take 150k generations to get to proxima. The species that arrived would be vastly different then the one that left.
voyager 1 moves at 40 kilometers per second which is 70,000 miles per hour
Your videos are sublime…you ask all the questions I ask. It’s wonderful. 🎉
Roughly 16,000 years to reach Centauri with our fastest technology.
I see one of the main reasons life has evolved this far, is the relative stability of the Earth`s environment. We`ve had 4(?) Billion yrs. since Theia hit the Earth. And it`s still up there today to keep our poles stable. I just have a gut feeling that a 3 star system would have too much chaos going on to remain a consistent and stable enough climate.
It's almost 4:30 in the morning. Looks like it's time for bed. Thank you for coming in clutch again Astrum. 💪
Excited to find life and call it the "Centurions"
4 light years is absolutely NOT within reach.
it quite is tho. We can even today already build generational ships. Which tbh we can overtake in that time before it even reaches it destination. Its such a thought that is the reason why we humans are probably very special. We question anything and try to solve it aswell.
It's might soon be with improvements in technology and our understanding in physics
We will need to travel maybe 1/10th the speed of light for it to be remotely possible. Ie. 30,000 km a second
Space travel optimists have a special kind of oblivious gullibility.
" I'm Alex McColgan, and you're watching Disney Channel ✨"
Nice, looking forward to listening!
Your channel brings me more joy and knowledge than any other, thank you truly Alex.
Wow, thank you
It would take us 720 CENTURIES with present technology, to get there. Hardly within reach! I admire your optimism though.
I had been dealing with depression and severe anxiety a few months ago and I had to stop watching your videos because the cosmos was giving me existential crisis’ and thoughts of being insignificant. I feel much better now and appreciate your videos. Thanks
When I feel like that I remember that we're actually amazingly lucky and special being alive at all, every single one of us is a unique work of art 💖
We are all insignificant. Might as well get used to it.
Recently found your awesome channel. One of the best space channel on TH-cam surely is Astrum 👍 I only subscribed Astrum and Anton Petrov for space knowledge. Thanks.
Astrum is great, so is Anton (I really like the daily uploads, that man is a beast). Also Check out 'History of the Universe' and 'SEA' if you like decent, accurate and non AI-Generated Space content, same level as Astrum. :)
@@tydewalt5425 Thnx for the suggestion.
You should check out Science Clic (english)
I hope in about couple of centuries Proxima Centauri will be perceived as what we consider Mars to be!
Dude, mars is less than two year from earth. You think in a couple of century we can break every law of nature and causality and travel twice the speed of light?
@@stefanogandino9192we might or we might not. But even accelerating at a fraction of the speed of light would be interesting
Touché brother!!
@@stefanogandino9192
Going by the rate at which science has developed in the last cantury, it's not beyond the realm of possibility. If you travel back 100 years and tell people about today's technology, they'd not believe you. Science is advancing at an exponential rate, and with time the rate of growth will only get faster with newer technology aiding us in our exploration &' understanding. We already have AI and nano tech and they're only in their infancy.
@@stefanogandino9192
Well not travel light speed, but warping space time maybe possible. Humans have alrdy theorized efficient ways to warp.
Will always find it funny that i found this channel because youtube gave me a rec of the "I want to change things." video. but hey it have provided me with endless hours of entertainment and knowledge.
Travel to Proxima Centuri? We'll have trouble traveling to Jupiter. The only reason we'd travel beyond Mars is to mine the asteroid belt, if we can't find the same resources on the Moon.
Brilliant hearing Johannesburg south Africa in your video as I live there!!!! Keep up the awesome work Alex and team!!
Astrumnauts. Love it! Great vid as always.
Whoever use "only" and "lightyear" in the same sentence should be put into jail.
I agree, however in this context that is truly a small distance.
I disagree, with advancements in technology one day we could potentially travel 4 light years in just a few dozen years
A lightyear isnt that far at all in interstellar space it doesnt even reach the nearest star
Congrats! These channel is Bloomin' Bonkers mate!
Wonderful choice of topic for a video, Alex. For an ever-curious layperson like me who loves nothing more than pondering the Fermi Paradox, the idea of learning even a little bit about this closest of exoplanets is guaranteed a happy audience.
It's so frustrating that the distances are so vast. Every time I ponder the notion of learning more about these far-distant worlds, I keep telling myself that a precondition of us finding out is that humanity MUST find a way to settle into a stable and sustainable way of functioning so that we have a chance to enact long-lasting missions. We need to have a society and culture planet-wide that is free of the sorts of chronic wars, inqualities and disturbances that currently plague us. If we can somehow find a way to mature as a species and find a balance with our resources and balancing our respective needs and wants; we have a chance to survive into the far future and if that's the case, then I'd say the sky is the limit.
Imagine living in a world where the notion of humans fighting other humans is seen as appalling, unthinkable even. At the moment, it'd probably take an actual alien invasion to bring us together as a species. In this made-up future, we would stop spending resources on defence and offence and instead on bettering the lives of ourselves and our kin. With a massive reduction in regional and global tensions, we'd be able to plan for the sorts of exploration and scientific missions that would far exceed the lifespan of any single person. Perhaps when linked with a sense of scientific 'pride' we could inspire folk to contribute to the building of missions that they themselves won't live to see finished; but will nonetheless feed an inner sense of pride every bit as motivating as winning awards or earning of millions of dollars.
Anyway, I'm ranting here because I'm inspired - again, great choice of video. May we one day find ourselves poring over detailed images of this distant world....
An understandable rant but too many people are locked in their ways, thus preventing (or at least severely limiting) overall maturing of the species...
I'm not even sure that a planet-wide alien invasion would necessarily change our ways and force us to work as a team. Even if the planet ended up mostly destroyed, the few remaining resources and habitable places would still create tension amongst survivors, because scarcity of ressources causes humans to become aggressive, with reason barely having any impact... History would just repeat itself...
Learn from History, you say? History would just remind you that, ultimately, life tries to survive any way it can. If it fails, it dies; if it doesn't, it survives some more...
For the particularly stubborn humans, I doubt there would be nice ways of getting them to adjust--if at all... But if you did keep everyone alive, all manner of existing processes and ways of life would require extensive changes, something which many people would hate. And then there's trust, which people have issues with--especially when it comes to governments trying, or wanting, to work together... Actually, it's bad enough trying to trust your neighbours and work colleagues, let alone entire populations in other countries that have vastly different cultures...
On top of all that, because humans have spent thousands of years relying solely on primitive technology to get by and living in isolated groups, there's nothing to convince them that joining forces would be better... If you listen to the far-right rhetoric, it'll claim that joining forces is in fact a "bad" idea... And as for the curiosity about the world and universe, it only goes so far--some telescopes are quite sufficient as most people barely like flying, let alone stepping into a rocket and then venturing across space...
So, for the humans who do want to travel to the stars, they should do so. (Go SpaceX!) The rest of them will just hang around on Earth, with some remaining totally oblivious that others ever left...
It might even turn into a funny scenario: "What? There are humans on Mars? When did this happen?" / "Well, about 200 years ago but your ancestors never cared. No, actually, they said it wasn't necessary..."
1:40 - Nice video, I like it! But it would by no means take "over 4 light years" to reach this star system, as ly is a distance unit, not a time unit. The distance is ~4.2 ly, which is passed momentarily by light photons, and it would take an infinity of time, if your rocket motor does not start in that direction.
By the time you spend going 24 Trillion Miles to Proxima Centauri, and then another 24 Trillion Miles to go back to Earth we might have long developed the technology to know it was a waste of time because that Planet wouldn't support life anyway!! But just think you might get to wave hello to your Great, Great, Great Grandfather as he's on his way back!!
Tidally locked planets, specifically earth-like planets are fascinating to imagine. They would have a hot day zone, a cold night zone and an inbetween twilight zone as a ring around it. The night side could be completely covered with glaciers, the center of the day zone could be a scorching desert while the inbetween zone could be habitable and have oceans and land. There would also be extreme winds on these planets caused by the temperature difference, which could actually reduce the temperature difference by bringing cold air to the day side and hot air to the night side.
Imagine being an alien from a tidally locked planet where the sun and the stars always stay in the same position in the sky, and entering a fast rotating planet like earth for the first time and seeing the sun move quickly in the sky and seeing how all life forms are adapted to the day and night rhythm, while on your home planet you are just used to eternal day/evening night depending on where you are on the planet.
CREAMITORIUM
I wonder if the aliens on that world would sleep in a way we'd recognise 🤔
The sun would always stay in the same position, but the stars wouldn't.
Another great channel for me to follow. Thanks for your skills.
4 light years is the closest.
It might be more or it might be less...
1 light year is the distance it takes for light to travel in a year.
We need to really consider sending probs to it now.
Really? At what speed? Because at the speeds we are capable of now, it's pointless. Do you even know how far a light year is? Do you even know what speeds we are capable of right now? Do the math and then rethink your suggestion.
Unfortunatly it would take almost 40.000 years considering the speed of a spacecraft like voyager 1 (30ish km/h), so it's not possible
@@sirsiver I thought Voyager was travelling 30hm/second not per hour? Lol 30km per hour is preeeety slow 😁
Set the controls for Proxima Centauri.
I am lead to understand that if we can reach 90 percent of the speed of light and keep that speed for as much of the voyage as possible then, thanks to time dilation, the journey time of the craft can be as little as 6 months; - anybody who makes the round trip stands to arrive back at Earth to find everybody they know to be seven, eight or more years older...
Thanks for the video brother Alex
The original treatment of James Cameron's Avatar specifies the location of Pandora as being a moon of a gas giant in orbit of Proxima Centauri
Stellar work. lol
if I ever get this comment on one of my videos, I will actually cringe 😭
Time to put my 2 cents worth on the table.
Even if they manage to create working probes that small. Electronics will break when they get too cold, and we already have transistors that can't get any smaller, there is already a one molecule thick divider in our current high end processors. What we really need is transistors that work without the barriers, so we can make them smaller. Second issue is keeping it powered, smallest batteries I know of are watch batteries, but they will only last 7 to 12 years before they die, and need to be replaced. Solar won't do any good past Pluto, and Proxima Campari is too dim till you are in the habitable orbit zone. Third issue, Power output for data transmission. Without powerful radar arrays, we can barely make out a signal from the Voyager 1 and 2, who's output is 20 watts, unless you know what to look for, you would miss it, and by the time it reaches us, it's directed transmissions are about 0.000001 watts, just past the Heliopause. In order for these probes to send back any data, they need to be able to transmit at least 1 MW. Noe, I admit, A relay system could be used, without making it larger, but you have to send out a probe every day and hope they all continue to work till data is received. 44 years of sending probes really does make it a LONG shot in the dark. It would be better to just send 1 large probe with more options, Heck, I would be willing to go on a full sized vessel shot from a rail gun style launcher after a slingshot around the sun, the rail gun part would have to be 3x the mass of vessel, and about a quarter mile long to get the speed up really high, internal atmosphere pressures near 0, while feeding pure O2 at no more than 5 psi directly like a scuba diver for the firing, the G forces will most likely reach 250 g and last till past Saturn or even Neptune as you will feel the pull of gravity from the sun. Then as the craft wizzes past Earth, a single use of the Longshot's lasers could be used to push the craft that much more. Go down in history as the fastest and most g-force sustained, even if it takes more than 40 years to get to the destination, still worth it.
Holly cow almost 2m subscribers i had no idea you had grown that much!! Early congrats @astrum.
I flew there in my stolen Ecliptic Claymore 🚀
No you didn't, i own the only Ecliptic Claymore, and it's parked in my garage...wait...
"only". "Within reach." I love the optimism but we'll destroy ourselves long before we travel to the nearest star system. It might as well be infinitely far away which 4 light years pretty much is.
If what he said was true and the microchip can travel at more than 10% the speed of light it will take less than 40 years for it to reach there which seems to be well within my lifetime atleast.. hope I get to see it
Don’t be hasty to discount our chances. 200 years ago it was thought that flight was utterly impossible. Yet here we are, millions of flights a year. A hundred years ago, it would have been unthinkable that we would land on the moon, and 70 years later we did just that. Einstein thought the atom was beyond humanity’s ability to utilise, yet here we are. The future is uncertain. We could discover new ways of travel, ones we haven’t even conceived of yet.
@@ValouroverFear That would require pretty much everything we know about physics in general and relativity in specific to be spectacularly wrong... I like hope as much as the next person, but most discussion about this stuff seems to start with the idea that we want this to be true and then works to find ways it could be, rather than just looking at the physics and making a call.
@@ValouroverFear Except we're talking about needing to increase speeds by orders of magnitude to reach it and that's only at very, very high speeds for a "reasonable" amount of time. Start doing the math to see. At 1 million mph, at 10 million mph, at 25 million, etc. And remember, speed of light is 670 million mph. So just to go 1 percent of light speed you need to go 6.7 million mph. We're not even at 500,000 mph. At 10 percent of light speed it would take you 40+ years to reach it. But we're not doing that any time soon. It's not a question of being able to fly or sending a probe, it's a question of speed, time and distance. That's entirely a different thing to conquer considering what we can do today after so long. Voyager 1 is heading out at 38,000mph for 47 years now. Have we come close to doubling, tripling, quadrupling, etc. that speed after 47 years? And yea I know about the Parker solar probe. That isn't the same thing as sending a probe out into interstellar space.
Nothing will destroy humanity our numbers and technology makes that impossible
That would be 'almost' in approximately the same sense as in
1+1 = almost 3300
(proxima centauri is still about 1650 times farther away than our furthest man made object has reached out into space until now, and that's after more than 45 years of travel)
And yes, hopefully we'll develop faster craft in the future.
Always a pleasure to see a new post from Astrum🔥🔥🔥
Ah yes, a planet that could be habitable
Humans: "Woah, that's really cool that it's that close to us"
Humans 1 second after discovery: "Alright, enough procrastinating, how do we exploit it?"
Excellent video!! Many thanks!! 🌟🌟🌟
Another great video, thank you Astrum!
If anyone is Interested in visual example of the difference between a massive flare from the Sun and one from a red dwarf, I recommend searching for a video about the binary system called DG Canum Venaticorum (DG CVn).
A flare 10,000 times brighter than the brightest we've ever recorded from our star. It's pretty crazy.
And why hasn’t the James Webb space telescope looked in that direction? Why are we only relying on ground base telescopes to do the viewing?
Maybe they have already and found earth part 2. Who knows ! Certainly these matters are confidential top secret. Cannot make public else war will break, people and nations will go crazy - 4 light years is a long distance - nevertheless ppl will go crazy if earth part 2 is revealed
James Webb was more made to look at galaxies far far away because of the infrared spectrum it observes. Basically it's designed more to discover the evolution of the universe, also its time is very limited and in demand for what to look at.
That doesn’t mean it can’t detect artificial light, N2, O2, Ar, & CO2.. evidence of possible life. JWST is more than capable of detecting these elements in an atmosphere as it has already done so with a distant gas giant in another solar system. Try and keep up with current events ok 👌.
Hi Alex. Thanks for making this. Wonderful as usual. But if I may: Too many "more on that, later" thing--which hardly ever materializes, and beecoming more frequent in your uploads. It is a lot better to give a brief right there and then, than religating people to a "detailed" one, on some uncertain time or date in the future.
I recently noticed this too, it gets pretty annoying to be honest. Lots of information is not built on, and because of that doesn't mean anything to me
@@ethan3056 You are right. His work is slowly going to seeds. If he does not stop and reverse it, I will unscribe and won't check the postings any more. He used to be so wonderful and informative.
Your new cinematic method for displaying your patrons at the end was fantastic!
Great video, like always 💯👍
I just love the way astrum talks about space, it is fun listening to and the same time u understand wat he is talkin about
Yes definitely within our reach, with our most advanced spacecraft it will only take a mere 70,000 years to reach.
“ONLY” is doing a lot of heavy lifting here.
To name Musk and Zuckerberg with Hawking in one sentence is an insult to Hawking.
Generations to reach is an understatement. More like 70 000 years with our fastest, unmanned satellite, if it were even able to last that long (it can't).
Yeah, it's all pipe dreams... Scientists insisting it'll be possible to do a fly-by, but really it's to keep their funding, so they can continue to make house payments. ..
Pipe dreams...
Stop comparing things with the voyager it launched in the 70s. When that launch to now is the same difference as the first plane and jet fighters. That's the difference from going 30 mph and 1200 mph
Im confident with todays tech we’ve cut that time in half
Voyager 1. still has 70.000 years to get to Alpha Centurai. Good luck with that journey.
Great thumbnail. Perfect job there! Keep it up Astrum Team 👍❤
within reach? hahaha, good one
Really beautiful.
If the probe buzz through the star system at 20% speed of light, it gives just minutes of observation time before it is gone and theres no way of slowing it down once it nears the target.
I also like to know how its supposed to communicate with earth at this distance and its (lack of) proper power source and transmitter given the projected weight.
Not only is it NOT in reach its completely incomprehensible how not in reach it is . 1 light year =5.88 trillion miles . so 23.52 trillion miles away .. fastest man made space object ever 394.736 mpH at 400.0000 mph it would take 1.426.940.639 years to get there give or take a few million years for toilet an gas stops
40,000 years to reach an inhospitable planet and star system. We will never leave the solar system as human beings. That's an absolute fact.
Agreed........
The problem that is always thrown out there is the fact that no aliens have ever reached Earth.
Considering that we are further away from the Alpha Centauri system than a lot of its neighbouring stars, we must accept that any potential for alien exploration would begin closer to those stars.
Ahhhhhh so many "facts" people ignorantly said would never happen in the future... How many people 400 years ago would believe we would have the world's biggest library in the palm of our hands?
@@tankeater Orders upon orders of magnitude more difficult and inhospitable than any form of travel ever done on Earth or near Earth orbit. Don't kid yourself.
@@EdwardHinton-qs4ry but am I correct? If it wasn't for the suppression of Dark Matter, we as humans would be much more advanced then you could even perceive... A simple Butterfly Effect, wouldn't have made my claim seam so outlandish to you. Science and your pessimistic thinking don't mix. 👍
@@EdwardHinton-qs4ry that's the same thing they said crossing the Atlantic Ocean for the Europeans and what the Asians said about crossing the Pacific Ocean... You're mindset and science, don't mix. 🤦♂️👍
Great Content!👍🏻
São estrelas tão brilhantes...onde há um planeta que brilha demasiado e surgem ideias brilhantes e ousadas ...para chegar lá, a distância apesar de perto 4 anos-luz...é muito longe a 40 triliões de quilómetros!! É uma viagem muito afastada para chegar a Proxima Centauri?!
Kind of ridiculous to put Stephen Hawking in the same sentence as Mark Zuckerberg and Elon Musk. Hawking was a genius of the highest order. Zuckerberg and even Musk are big dorks.
OK, to put Stephen Hawking in the same group as Elon Musk and Mark Zuckerberg it’s pretty insulting.
Perhaps together with Jeffrey Epstain?
Insulting to Musk and Zuckerberg, yes.
Should be with bill gates and Jeffrey
0:15 that graph is not to scale at all, according to that, proxima centauri is only 50mins away at the speed of light.
These days I give already a like when not a robot voice for narration is used. Thank you for the video. I think you should add at the beginning: "No AI voice is used for narrating this video" as more and more people start hating the dead ai voices.
Y’all gotta have your “come to Jesus” moments about everything that has to do w interstellar travel. Radiation, inability to adjust trajectory, particle impact devastation, slowdown structural damage, inability for a cpu to self-repair… my god…. I love Star Trek as much as the next astrophysicist but y’all have some blinders on.
Your imaginary friend is entirely irrelevant to the topic at hand
Great comment, we have to keep in mind that this “space porn” is for the lowest common denominator. If you are someone with a Bach or higher you may be in the shallow end of the pool. Wink
Astrum is simply one of the best space channels on TH-cam! No clickbait, just informative and entertaining content EVERY TIME! Keep up the great work brother!
“Earthlike”. Similar gravity, atmosphere, surface area of water, magnetic field, distance from star, moon and tides, tectonic activity? We have no clue how rare something truly “earthlike” is. Could be 1 every 10 stars. Could be 1 every 10 galaxies.
02:23 - I'm right in that line. Yaaaay! (But I can't see a red line nor a red dot in the skies..)
Who are you kidding? We will probably never leave the solar system. But dream on...
Proxima Centauri is not an inhabitable system. The star is too small, so the inhabitable zone is too close to the star, and such stars are prone to extremely violent solar flares. The likelihood of any super-earth there being able to hold to an atmosphere or to not be massively irradiated constantly is extremely low if not zero. And if the place does not have a strong magnetic system, forget about creating an atmosphere and terraforming.
At the pace we are destroying our planet, we would have to leave for another system way before the point we will have the tech to terraform another planet with a totally hostile environment and in a system that is not compatible with life as we know it.
We need to stop thinking about moving to other planets, and start caring about ours. The current mentality of "stripe earth bare of its resources and then move to earth 2" is not sustainable by design and it will mean the end of life and, certainly modern civilization, in very, very few centuries. Definitely too soon for us to be a unified civilization with the power to travel the stars and tame systems.
It all makes for very nice sci-fi, but it's just not realistic.
I really really hope breakthrough starshot is successful.
Also, I saw another program that has the potential to use our own sun's gravity to act as a gravitational lense to view details of the surface of other planets beyond our solar system.
Both ideas are far out....but I hope I survive long enough to see the results of at least one of them (or something similar).
@0:14 .... that's not to scale! Sun to Neptune is 4 hours ... Sun to Proxima Centauri .... 4 years
We are born to inherit the stars 🗣🗣🗣🔥🔥🔥
You know what angrifies up my blood? If it wasnt for the Church banning science for 300 years. Most of us would be out there somewhere right now, living the dream.
LOL!
@@upupuptheziggurat.liketysplit That didn't have much to do with the Church, if we English hadn't been so intent on waging war all around the world, we probably could have invented industrialisation about 400 years earlier, but even busy little worker bees need a break now and then. :)
@@upupuptheziggurat.liketysplit
Isn't it funny how things that have nothing to do with the Church are blamed on the Church? People just WANT to be anti-theists at this point.
@@TheSpacePlaceYT I highly suggest you look up what the Medieval dark ages in Europe did for Science then.
Hard verified fact.
Quick feedback of brilliant video:
Would have been good if you compared the distances to equivalents in our Solar System, like the .13 light year separation from the two main stars, is that equivalent to the sun - Neptune? Oort Cloud? Same with sizes, what does Proxima size compare to Jupiter? Or orbit distances compare to Mercury?
I’ll head over to google now and compare and find out.
It’s “Only” about 4 Light Years away! Proxima Centauri is our nearest star after the sun however: If we were able to travel at the Speed of Light, it would take 4 years or there about’s to get there. If the journey were to be undertaken in the Space Shuttle, which traveled at around 17500 mph: The total time it would take to get to Proxima Centauri from Earth, at the speeds we are able to achieve in Space Flight today would be quite a long time! That time would be about 63.000 Years!!!
11:40 It's also possible that the planet was once multiple protoplanets or protoplanetoids,
that merged during their still gas phase, or shortly after.
great video!
Thank You AT
The names of stars and planets often have fascinating origins. For instance, Alpha Centauri and Proxima were named by astronomers. Alpha Centauri was identified as such because it is the brightest star in the Centaurus constellation, and Proxima, meaning 'nearest' in Latin, is the closest star to the Sun. The name Earth, on the other hand, comes from Old English and Germanic words meaning 'the ground' or 'the soil,' and its exact origin is lost to history. It's indeed intriguing that while we can name celestial bodies light-years away, the name of our own planet's origin remains a mystery. The names like Alpha Centauri or Proxima Centauri are given to these celestial bodies to help us categorize and understand them within the vast universe.