The guy was so imaginative, insightful, and ahead of his time. Sci-fi authors like him are just as important to our scientific understanding of the Universe as any white coat.
Great show! Two questions to choose from: 1. How will astronomers deal with megaconstellations? 2. When, if ever, will we achieve all-sky all-time all-wavelength coverage in astronomy?
I love starting my day watching your Q&A shows and Space Bites while I do my morning exercises. Thank you for sharing this knowledge with us. It's great to start the day with good news and new knowledge.
I had a pet cricket named Chirpy. It started as a 5-gallon terrarium with a bunch of wolf spiders. I fed them crickets from the store, but then one big cricket outlived them all and lived for a long time. I'd take a chirpy pet cricket with his box, especially if the other choice was a dimwitted silent tilapia with his huge messy tank.
Thank you for presenting and explaining these newest Astronomical findings. It seems like there is so much new science discovery information these days -- very interesting. 😊
Question for your next q&a: what would happen if a cubic light-year of lead (enough to stop neutrinos) just popped in existence halfway out from the center of the galaxy? I'm guessing the mother of all black holes, but how would it affect the milky way? What if it was 1000 cubic light years instead? Thanks.
A cubic light year of lead would have the mass of about 10 billion galaxies! You can imagine 1000 cubic light years would be have the mass of 10 billion billion galaxies, or about a million times the mass of our known universe!
To get into astrophotography, first find an astronomy group near you! Most astrophotography setups cost less than $5000, but you can sometimes borrow equipment or go to an event to give astrophotography a try
30:20 Deep-space concrete: get far enough away from the sun that water stays frozen, barely melt some in-situ ice, and use the slushy water as a construction material.
HOTH because of the cool clips. Questions: Do planetary ring systems always form along the equatorial plane? On gas giants with cloud bands, are these bands always parallel to the equator?
Rings: Some rings may be the result of moons that were disrupted by the planet's gravity or moons spewing material out (like Enceladus and Io do), and not all moons orbit in or near their planet's equatorial plane (particularly if, like Triton, they were captured by the planet rather than formed in place), so inclined rings might be possible. I wouldn't expect them to be as stable that way, though-they might get spread out more quickly by the gravity of other moons, for example. Cloud bands: Because they're caused by the planet's rotation, I don't see how they could be any way but parallel to the equator, unless the planet rotates so slowly that the atmosphere doesn't feel the rotation (but then there would have to be something else to make the clouds form parallel bands like that).
I’m grappling with this question Actually our solar system is a giant ring system around our Sun and all the planets formed within this ring system Our solar system is actually made from the left over debris that didn’t form to make our Sun Gravity pulled everything together from a giant gas cloud At the core of this cloud where gravity is strongest the Sun formed and the left over stuff formed into planets and moons an asteroids and all other material Some of this is still theoretical but they can witness this process unfolding in other nebula This is the reason astronomers are so interested in viewing what’s happening within these stellar nurseries There’s disks or ring system that form around new born stars They seem to form around the equator of the companion star but I’m not a rocket scientist and can explain this process from my own readings of this process Believe it has something to do with angular momentum and spin What’s amazing is there’s a second solar system around our Sun at a 30 degree angle to the initial solar system And it’s believed Planet X could be found in this other system or another theory there is no Planet X but a whole bunch of undiscovered worlds out past the Ourt spelling Think the second theory is more plausible Not really sure a lot of science began as speculation or theory Just saying I’m not completely sure about all I said If you agree that’s great Thanks for your time just trying to give my own answer to your question about ring formation 😅
Tattooine was a great question about "cleaning up" images for astrophysics or astrophotography. Your answer was really clear too. Good job! The Hoth question about habitable places in the solar system was good too. And the Iceships of Dagobah were a supercool idea.
@ 19:00 GroundHog (also called Woodchuck) is pretty tasty. It's a little fatty mammal that eats veggies and tastes a lot like beef. We could call them MoonChucks and raise them in an underground farm on the moon.
29:34 - I still think the most reasonable answer is to tether two Starships together and spin them so they have centripetal "gravity". Then despin and disconnect a day or two before planetary approach.
Given the densities we work in venus I wonder why we never hear of such concepts like a boat. You figure, a Large, hemisphere with a little bit of water at the bottom for stability should allow such a platform to float as density gradient on venus can get rather large. Curious exactly how large it should entail but sounds plausible. Buoyancy is a function of displacement so large enough should create a boat that rides on the cloudtop with zero energy or mass input like leaking helium. Our minds might initially go against the idea of solids floating on gasses but its not without precedence as we do it with I believe sulfur hexafloride as a science demo here on earth.
❓️Hey Fraser 3 part question. Is the expansion of space related to time moving foward? If so does that mean that if the universe began to shrink back to a singularity that time would rewind and run everything backwards? And if time is linked to the expansion of the universe would time speed up as the universe expands quicker and quicker ❓️
BESPIN, because I feel it was NOT well answered. Your answer raised more Follow-Up Question for me: From my understanding it would make a difference at what angle an object approaches a black hole, wouldn´t it? If the object (Rogue planet or whatever...) is on a tangential trajectory close to its ecliptic it would end up in the accretion disk, pulled into an orbit and torn apart by the extreme gravity. I understand that. But what, if the original trajectory is aimed dead center at the point of singularity or at a point within the event horizon? Or if it approaches the "North/South Pole" of the black hole. Wouldn´t that be a straight swallow-up? What about an object, that hits the accretion disk from above or below? I imagine mud hits the fan-type effects? Wouldn´t the 2D accretion disk turn into an 3D accretion ball? Love your content!
You put a smile on my face when you said an amada of ships to mars, I straight away thought of the Spanish amada😄. Man to mars on mass one full Scoop would be awsome. We have to avoid the feme, firmi? Paradox .we can't just die out as a Specie..we have to spread ourselves Out there. Now couldn't be sooner. Have to start sometime. We have come along way in the last 100 years what's ahead the next 300years. Wish i could be their to See it.😎
Current NASA plans are to use space station modules and systems. How about a Bigelow module that expands, with milk bags that are filled with water around the outside, from a central bag that is emptied. This would be the radiation safe room, used for sleeping or working with portable equipment.
pets required! -- kamino - nope, "budget the luxuries first"... (robert a. heinlein) especially with high risk living where psychological disorder is disastrous. warm furry, cuddly, soothing friends are essential in space, and artificial spin gravity will also be required, both for physical and mental health. every ship needs a cat, seas and space alike, and yes, mice will get on board.
If you don't want to take serious professional astrophotography photos it's not nearly so expensive. Can get a motor for a couple hundred dollars, and then just get a phone mount for your telescope and you can take some pretty good pictures, if all you want to do is admire the photos yourself and share them on social media casually, then it doesn't need to be pro quality.
Question - As we know the moon is slowly moving away from the Earth. What happens when it breaks free of the Earth? Does it become a rough moon and moves thru the cosmos? Is it drawn into the Sun? Does it set up its own orbit plane? If it is in its own orbit or share the same orbit of Earth…would a collision be inevitable? Also if the moons moves does it disrupt Esrt’s orbit?
Bit late here but why would we take water to space? Ice is plentiful out in space. Just found it a weird way to answer that question. Anyway, great Q&A episode as always. :)
Using ice as a protective shield against radiation on space ships is an interesting idea. If there was a way to get water molecules to be attracted to the outside of your space ship would that work? So you wouldn't need to do manufacturing of ice, just a kind of fly-by.
Love the channel. Always so impressed by your ability to give clear and concise answers at the questioner's level. Question: Because the moon doesn't have erosion or plate tectonics, could we learn more about Theia from in-depth sampling of regolith in core samples?
It does have erosion, from impacts, but maybe. You'd probably have to find a spot where there has never been a crater (which I don't know exists) or drill below the layers that have been churned up by impacts.
I have sort of three questions, all related to the 'frame rate' of our space observations. Feel free to combine them or just take individual questions if only one seems interesting. I know most modern observatories work by taking a series of images over time, not literally someone putting their eye up to an eyepiece, and that usually, the image are stacked on top of each other to create a final image. What is the 'frame rate', if you will, of some of the big well known telescopes? In other words, how much time goes by between individual images in the stack? And to ask the other side of that question, what are the most powerful observatories that can still capture something like video? And while it makes a lot of sense to me intuitively that in deep space things usually happen very slowly because of large distances between objects bright enough to observe, how well tested is that intuition?
I think legs on the booster will happen after they see how bad the damage is when a booster or starship slams down and explodes like a vacuum bomb. Temporary legs why not? Need them eventually anyways. I think this is a mistake. The legs are heavy but they help insure timely success and protect valuable ground assets like tank farms. RUD on launch becomes the only risk to major infrastructures.
My question is would virtual particles pop into existence and then annihilate. One. Another could that be an explanation for the expansion of the universe? Also could it contribute to the big bag as well?
Tilapia does well in polluted waters and are herbivores so you could grow some floating feed crops and call it the gray water system. Might be nice to look at.
A spaceship not necessarily made out of ice but a spaceship made in the traditional way but with a void along the entire structure's frame where you can pump in water (On orbit) where it would freeze providing protective shielding between the outer, iner layers of the spaceship. For an example like one of those thermos cups with liquid in between the drinking vessel and outer shell.
In the end, I believe Starship's best use will be to get heavy payloads into space to build space ships that are better suited to solar system travel. Maybe nuclear engines, artificial gravity, large ships with decent size landers for where ever. Etc. etc. I do not think Starship will ever fly a bunch of people to Mars.
You don't need to drop $5,000. A quality wide field scope or lens with a digital camera on a star tracker or light weight equatorial mount can be done for under $2,000.
Where is it habitable in the solar system? Well, depending on what you mean by habitable, every square inch of the solar system out to the Oort cloud and beyond would be habitable. All it would take would be a little bit of research into advanced materials, heating/cooling systems, and logistics. I might be understating the "little bit" part a tad, but whatever. Also: If I was chosen to go to Mars and be the first one to touch down on the planet, the first thing I would say would be, "Mission control, I've a feeling we're not in Kansas anymore, over."
So I have a few questions but I will start with this one, and it may sound stupid but it makes sense to me. Let's say that we were to be able to design a flashlight that can easily be shined upon, and seen on the surface of the moon. If we did so, would we see the light hitting the moon at the speed of light, or at half the speed of light? Half the speed being that the light would hit the surface, but would have to reflect back at the same speed to our eyes. Now obviously the time discrepancy is very small when speeking on the speed of light on an object as close as our moon, but the question still applies.
If you turned on the flashlight, you'd see the light on the Moon 2.6 seconds after. The light takes 1.3 seconds to get to the Moon, and then 1.3 seconds to reflect off it and come back to your eyes.
if the rogue planet was moving at relativistic speed (10% the speed of light - and these do exist) ... depending on its mass wouldn't it just maybe partially get torn apart, but most of it would just pass through? My related question would be - what if a planet sized object moving at relativistic speed hit a black hole head-on ... would the time dilation near the event horizon basically just cause it to spaghettify into the accretion disk because time slows down so much at that point (in other words - nothing can pierce the event horizon "period" without going through the accretion disk first.
Hey Fraser, since the universe is expanding, shouldn’t a wide spectrum telescope see a light trail going from infrared to ultraviolet instead of a fixed point image of a star? Like a slow shutter photo of a hue changing car headlight? I mean, light emitted 10b years ago from a star reaches us with a different wavelength and position in the sky than the light emitted by that same star 5b years later, right? Shouldn’t that draw a light trail? Love your channel, thanks
Thanks Fraser. Got it now. Your channel is one of those ever rarer places where the internet is still, against all odds, unbelievably amazing. Answer: m.th-cam.com/video/WSt1AqPYdkM/w-d-xo.html
Personal opinion: Starship + superheavy will eventually become a successful system. Further development of Starship will also then occur... it may take a lot of trials. I doubt that they will try to catch the booster until they do many trials and have some confidence.
at 30:20 Yes, that's a great idea. An AI factory rendezvous with a comet and grows/manufactures AI spacships, launches them on separate orbits to go to cislunar space by using the comet volatiles as reaction mass? Should be possible less than a century from now.
Speaking of ice spaceships, couldn't we find a small asteroid (say, building-sized), park it around the Earth, hollow it out, put some thrusters on it for maneuvering, pack up all we need, fire up the thrusters and just keep using the rock as a spaceship?
Ignoring the pure science fiction aspects, do you think that the book Project Hail Mary by Andy whier has an accurate representation of interstellar travel? How close could we get to the technology used in the book?
Hoth I am inspired by all the places where we can look to narrow down the answer the Fermi paradox. And places in our solar system that we can colonize early days.
Kamino I disagree with your proposal that crickets would be used as protein source though since there are many protein rich plants available and I'd eat beans and legumes 24/7 before a cricket ever gets close to my mouth. Now, if we found a planet that has fish, I'd use the crickets as bait.
Hey Fraser I can't find my original question I had. It had to do with the expansion of the universe and u told me to DM you but I couldn't figure out how to do that
Would it be possible to build a Rover / Robot / craft that could "land" (Float) in the atmosphere of Jupiter, without falling further, and getting crushed? something that could navigate inside the atmo of Jupiter and send us back data? Jupiter is probably my favorite planet in the solar system, and I just want to know more.
It's really tricky since Jupiter is made of hydrogen, the lightest element. The only thing lighter than hydrogen is heated hydrogen, so you'd need to have a balloon that can keep hydrogen gas heated up.
@@frasercain so, hypothetically, if we found a way to do it, we could have a hot air balloon, dangling a robot, cruising around Jupiter. *Assuming we could build something strong enough to handle the travel there, and then any crazy winds / weather it could encounter while there, and any associated pressure changes in the atmo associated with it. Sounds like a plan to me!
I've been saying for years that crickets are the protein of the future. They are quite common as a food in Mexico, I've seen them mixed in with guacamole and as a pizza toping. I've tried them and they're... meh. Given a choice I'll take steak every time, but on Mars you're not going to get that option. I can also see beef becoming too expensive for the average person to afford to the point where crickets make more sense.
Spaceships made of ice must be a Canadian idea? Where the astronauts will ice skating around in the spaceship? But the hockey sticks, those you leave at home?
@@petevenuti7355 - it could be many more will appreciate a rocket made of ice, not only the Canadians, and those rocks can double as pets also, as some suggest we use instead of cats and dogs
Mrs Richards: "I paid for a room with a view !" Basil: (pointing to the lovely view) "That is Torquay, Madam ." Mrs Richards: "It's not good enough!" Basil: "May I ask what you were expecting to see out of a Torquay hotel bedroom window? Sydney Opera House, perhaps? the Hanging Gardens of Babylon? Herds of wildebeest sweeping majestically past?..." Mrs Richards: "Don't be silly! I expect to be able to see the sea!" Basil: "You can see the sea, it's over there between the land and the sky." Mrs Richards: "I'm not satisfied. But I shall stay. But I expect a reduction." Basil: "Why?! Because Krakatoa's not erupting at the moment?"
I oppose Starship because it is too complex and fragile; a lot could go wrong with it. Remember the Space Shuttle of which 2 out of 135 flights were disasters. Would Starship have the same rate of catastrophic failures? How would that impact the public perception if a hundred people were to die? In its place, I would have Sea Dragon, an old 1960s design for a huge, reusable ship with a 550 ton payload. It is an extremely simple design. The simpler something is the more reliable it becomes. It would be launched from sea, thus avoiding the destruction of a launch pad.
I have done a Google search and found out the sun is travelling at 448,000 mph. Does this mean that if you set off a rocket in the opposite direction. It appears to us that it is moving forward. However, it's actually travelling in the same direction as the sun?
Fraser, If you're planning on talking to Phil Plait - I'd appreciate if you press him on what kind of evidence would demonstrate that UFO/UAPs could be of alien origin. I 100% share his skeptical worldview - and I don't believe for a minute that these things are alien - but his "What would it take to change your mind" answers have been weak on this question IMHO. See his recent interview with JMG
Conditions of the tornado on earth compared to everywhere else seems so much like these black holes and if you remove the air and atmosphere and look at the possibilities of speed this thing must rotate no wonder it cares everything apart and sucks it in you know it ends up somewhere else
SpaceX infrastructure needs to be dispersed away from the launch/landing pattern. It worries me whenever I look at it. There were some great achievements. The rocket held together well in the circumstances. Just launching it was great. Having so many engines firing. My other concern is the risk of hurricane damage close to sea and sea level. Do we need nuclear power to populate space? Generation 4 fission reactors.
Solar eclipses are spectacular because the Moon and the Sun are the same size in the sky. Would lunar eclipses be drastically different if the Moon was the same size as the umbra, or even slightly bigger?
29:05 Why would you say that? An average ISS mission is about 6 months. Staying alive and safe in micro gravity for 6 months is one of the few things we know how to do and we know it works.
Under the protective shield of the magnetosphere where radiation is only a little higher than flying in an airplane. Where resupply flights come up ever few months to bring fresh food and take away your trash. That's nothing like a deep space flight to Mars.
Arthur C. Clark's novel Songs of Distant Earth describes a interstellar spacecraft with a huge mass of ice on the front to shield against radiation.
The guy was so imaginative, insightful, and ahead of his time. Sci-fi authors like him are just as important to our scientific understanding of the Universe as any white coat.
Good book...
@@talkingmudcrab718 You should read Fountains of Paradise.
There's also "Gallagher's Glacier", by Walt and Leigh Richmond
Nerd.
Most underrated channel 🏆 (thanks Fraser and team)
Great show! Two questions to choose from:
1. How will astronomers deal with megaconstellations?
2. When, if ever, will we achieve all-sky all-time all-wavelength coverage in astronomy?
I love starting my day watching your Q&A shows and Space Bites while I do my morning exercises. Thank you for sharing this knowledge with us. It's great to start the day with good news and new knowledge.
I had a pet cricket named Chirpy. It started as a 5-gallon terrarium with a bunch of wolf spiders. I fed them crickets from the store, but then one big cricket outlived them all and lived for a long time.
I'd take a chirpy pet cricket with his box, especially if the other choice was a dimwitted silent tilapia with his huge messy tank.
Dagobah was my favorite. Super fun idea
i listened to the raw livestream but you've done an awesome job editing this video, it'd nearly be worth watching again
Thank you for presenting and explaining these newest Astronomical findings. It seems like there is so much new science discovery information these days -- very interesting. 😊
Space hamsters. That’s my vote. They turn into space balls when frightened. Seems appropriate.
Question for your next q&a: what would happen if a cubic light-year of lead (enough to stop neutrinos) just popped in existence halfway out from the center of the galaxy? I'm guessing the mother of all black holes, but how would it affect the milky way?
What if it was 1000 cubic light years instead? Thanks.
A cubic light year of lead would have the mass of about 10 billion galaxies!
You can imagine 1000 cubic light years would be have the mass of 10 billion billion galaxies, or about a million times the mass of our known universe!
@@tonywells6990 woah! Some pretty dire consequences for the immediate galaxies then I'd imagine.
To get into astrophotography, first find an astronomy group near you! Most astrophotography setups cost less than $5000, but you can sometimes borrow equipment or go to an event to give astrophotography a try
30:20 Deep-space concrete: get far enough away from the sun that water stays frozen, barely melt some in-situ ice, and use the slushy water as a construction material.
HOTH because of the cool clips.
Questions:
Do planetary ring systems always form along the equatorial plane?
On gas giants with cloud bands, are these bands always parallel to the equator?
Rings: Some rings may be the result of moons that were disrupted by the planet's gravity or moons spewing material out (like Enceladus and Io do), and not all moons orbit in or near their planet's equatorial plane (particularly if, like Triton, they were captured by the planet rather than formed in place), so inclined rings might be possible. I wouldn't expect them to be as stable that way, though-they might get spread out more quickly by the gravity of other moons, for example.
Cloud bands: Because they're caused by the planet's rotation, I don't see how they could be any way but parallel to the equator, unless the planet rotates so slowly that the atmosphere doesn't feel the rotation (but then there would have to be something else to make the clouds form parallel bands like that).
I’m grappling with this question
Actually our solar system is a giant ring system around our Sun and all the planets formed within this ring system
Our solar system is actually made from the left over debris that didn’t form to make our Sun
Gravity pulled everything together from a giant gas cloud
At the core of this cloud where gravity is strongest the Sun formed and the left over stuff formed into planets and moons an asteroids and all other material
Some of this is still theoretical but they can witness this process unfolding in other nebula
This is the reason astronomers are so interested in viewing what’s happening within these stellar nurseries
There’s disks or ring system that form around new born stars
They seem to form around the equator of the companion star but I’m not a rocket scientist and can explain this process from my own readings of this process
Believe it has something to do with angular momentum and spin
What’s amazing is there’s a second solar system around our Sun at a 30 degree angle to the initial solar system
And it’s believed Planet X could be found in this other system or another theory there is no Planet X but a whole bunch of undiscovered worlds out past the Ourt spelling
Think the second theory is more plausible
Not really sure a lot of science began as speculation or theory
Just saying I’m not completely sure about all I said
If you agree that’s great
Thanks for your time just trying to give my own answer to your question about ring formation 😅
Excellent Show. I always look forward to watching this every Saturday in Ireland.
Tattooine was a great question about "cleaning up" images for astrophysics or astrophotography. Your answer was really clear too. Good job!
The Hoth question about habitable places in the solar system was good too. And the Iceships of Dagobah were a supercool idea.
Hey, gravity has made handles on my sides, as well. Thank you, now I have a real good explanation of where these handles came from. LOL
@ 19:00 GroundHog (also called Woodchuck) is pretty tasty. It's a little fatty mammal that eats veggies and tastes a lot like beef. We could call them MoonChucks and raise them in an underground farm on the moon.
Your Mandalore at the end was about as reassuring as it was surprising. Nice stuff.
Mandalore ! :) Thank you for always great content! Best regards
Ships build inside ice was how the people of Free Planets Alliance scaped from the Empire in Legend of Gactic Heroes.
I love nerds!
29:34 - I still think the most reasonable answer is to tether two Starships together and spin them so they have centripetal "gravity". Then despin and disconnect a day or two before planetary approach.
I have a Celestron nexstar 8se for a telescope, saw Jupiter, and it's four major moon Saturday night. It was beautiful. 👍🏼
I vote for Bagobah. Aurthur C. Clarke rules. It makes sense to stop your interstellar voyage to take on more water.
It would be cool to see chandelier cities kissing the cloudtops of Venus.
Given the densities we work in venus I wonder why we never hear of such concepts like a boat. You figure, a Large, hemisphere with a little bit of water at the bottom for stability should allow such a platform to float as density gradient on venus can get rather large. Curious exactly how large it should entail but sounds plausible. Buoyancy is a function of displacement so large enough should create a boat that rides on the cloudtop with zero energy or mass input like leaking helium. Our minds might initially go against the idea of solids floating on gasses but its not without precedence as we do it with I believe sulfur hexafloride as a science demo here on earth.
Great Starship prediction
❓️Hey Fraser 3 part question. Is the expansion of space related to time moving foward? If so does that mean that if the universe began to shrink back to a singularity that time would rewind and run everything backwards? And if time is linked to the expansion of the universe would time speed up as the universe expands quicker and quicker ❓️
Really appreciate those images at the end. It's a really nice humanizing touch, which sounds weird when I say it like that, but I hope you understand.
BESPIN, because I feel it was NOT well answered. Your answer raised more Follow-Up Question for me: From my understanding it would make a difference at what angle an object approaches a black hole, wouldn´t it? If the object (Rogue planet or whatever...) is on a tangential trajectory close to its ecliptic it would end up in the accretion disk, pulled into an orbit and torn apart by the extreme gravity. I understand that. But what, if the original trajectory is aimed dead center at the point of singularity or at a point within the event horizon? Or if it approaches the "North/South Pole" of the black hole. Wouldn´t that be a straight swallow-up? What about an object, that hits the accretion disk from above or below? I imagine mud hits the fan-type effects? Wouldn´t the 2D accretion disk turn into an 3D accretion ball? Love your content!
You put a smile on my face when you said an amada of ships to mars,
I straight away thought of the
Spanish amada😄.
Man to mars on mass one full
Scoop would be awsome.
We have to avoid the feme, firmi?
Paradox .we can't just die out as a
Specie..we have to spread ourselves
Out there. Now couldn't be sooner.
Have to start sometime.
We have come along way in the last
100 years what's ahead the next
300years. Wish i could be their to
See it.😎
Current NASA plans are to use space station modules and systems. How about a Bigelow module that expands, with milk bags that are filled with water around the outside, from a central bag that is emptied. This would be the radiation safe room, used for sleeping or working with portable equipment.
Dagobah what a great idea
pets required! -- kamino - nope, "budget the luxuries first"... (robert a. heinlein) especially with high risk living where psychological disorder is disastrous. warm furry, cuddly, soothing friends are essential in space, and artificial spin gravity will also be required, both for physical and mental health. every ship needs a cat, seas and space alike, and yes, mice will get on board.
If you go with a spacecat, better make sure they don't have toxo. Can't imagine how supercharged that would get in 0 g lol.
Brain worms everywhere.
If you don't want to take serious professional astrophotography photos it's not nearly so expensive. Can get a motor for a couple hundred dollars, and then just get a phone mount for your telescope and you can take some pretty good pictures, if all you want to do is admire the photos yourself and share them on social media casually, then it doesn't need to be pro quality.
Question - As we know the moon is slowly moving away from the Earth. What happens when it breaks free of the Earth? Does it become a rough moon and moves thru the cosmos? Is it drawn into the Sun? Does it set up its own orbit plane?
If it is in its own orbit or share the same orbit of Earth…would a collision be inevitable? Also if the moons moves does it disrupt Esrt’s orbit?
I think a good pet that would actually be a pet for space travel would be an octopus.
Agreed. And they're clever.
Bit late here but why would we take water to space? Ice is plentiful out in space.
Just found it a weird way to answer that question.
Anyway, great Q&A episode as always. :)
Re: Crickets. "Locusts and wild honey"? Bringing biblical feasts to Mars - what a universe we live in!
How about pizza with locusts as a topping?🍕
@@MrVillabolo I think the Bible predates Cyberpunk, but yeah - I thought of that too. :)
I'll vote Yavin.
Using ice as a protective shield against radiation on space ships is an interesting idea. If there was a way to get water molecules to be attracted to the outside of your space ship would that work? So you wouldn't need to do manufacturing of ice, just a kind of fly-by.
Love the channel. Always so impressed by your ability to give clear and concise answers at the questioner's level. Question: Because the moon doesn't have erosion or plate tectonics, could we learn more about Theia from in-depth sampling of regolith in core samples?
It does have erosion, from impacts, but maybe. You'd probably have to find a spot where there has never been a crater (which I don't know exists) or drill below the layers that have been churned up by impacts.
I have sort of three questions, all related to the 'frame rate' of our space observations. Feel free to combine them or just take individual questions if only one seems interesting.
I know most modern observatories work by taking a series of images over time, not literally someone putting their eye up to an eyepiece, and that usually, the image are stacked on top of each other to create a final image. What is the 'frame rate', if you will, of some of the big well known telescopes? In other words, how much time goes by between individual images in the stack?
And to ask the other side of that question, what are the most powerful observatories that can still capture something like video?
And while it makes a lot of sense to me intuitively that in deep space things usually happen very slowly because of large distances between objects bright enough to observe, how well tested is that intuition?
spacecats...... sounds like a good film
Are there other/better tracking mounts then the newtonian mount? I just like to plug Sir Isaac newton for inviting the tracking mount.
A Venus + Mars human flyby mission by 2030 might be the best start. Landing on (and taking off from) Mars is still dangerous and difficult.
I think legs on the booster will happen after they see how bad the damage is when a booster or starship slams down and explodes like a vacuum bomb. Temporary legs why not? Need them eventually anyways. I think this is a mistake. The legs are heavy but they help insure timely success and protect valuable ground assets like tank farms. RUD on launch becomes the only risk to major infrastructures.
My cat "Apollo" would love to go on a mission to the stars.
Dagobah: Go to Saturn, harvest ice from the rings to make your interstellar shield. Bam.
My question is would virtual particles pop into existence and then annihilate. One. Another could that be an explanation for the expansion of the universe? Also could it contribute to the big bag as well?
Tilapia does well in polluted waters and are herbivores so you could grow some floating feed crops and call it the gray water system. Might be nice to look at.
A spaceship not necessarily made out of ice but a spaceship made in the traditional way but with a void along the entire structure's frame where you can pump in water
(On orbit) where it would freeze providing protective shielding between the outer, iner layers of the spaceship.
For an example like one of those thermos cups with liquid in between the drinking vessel and outer shell.
How do I know when/if JWST will focus on any of the popular alien star system? such as Zeta Reticulii. etc.
Hoth hath the best Q&A.
In the end, I believe Starship's best use will be to get heavy payloads into space to build space ships that are better suited to solar system travel. Maybe nuclear engines, artificial gravity, large ships with decent size landers for where ever. Etc. etc. I do not think Starship will ever fly a bunch of people to Mars.
How would we detect a sentient cloud creature? And what would gaseous life look like?
You don't need to drop $5,000. A quality wide field scope or lens with a digital camera on a star tracker or light weight equatorial mount can be done for under $2,000.
Where is it habitable in the solar system? Well, depending on what you mean by habitable, every square inch of the solar system out to the Oort cloud and beyond would be habitable. All it would take would be a little bit of research into advanced materials, heating/cooling systems, and logistics. I might be understating the "little bit" part a tad, but whatever.
Also: If I was chosen to go to Mars and be the first one to touch down on the planet, the first thing I would say would be, "Mission control, I've a feeling we're not in Kansas anymore, over."
So I have a few questions but I will start with this one, and it may sound stupid but it makes sense to me. Let's say that we were to be able to design a flashlight that can easily be shined upon, and seen on the surface of the moon. If we did so, would we see the light hitting the moon at the speed of light, or at half the speed of light? Half the speed being that the light would hit the surface, but would have to reflect back at the same speed to our eyes. Now obviously the time discrepancy is very small when speeking on the speed of light on an object as close as our moon, but the question still applies.
If you turned on the flashlight, you'd see the light on the Moon 2.6 seconds after. The light takes 1.3 seconds to get to the Moon, and then 1.3 seconds to reflect off it and come back to your eyes.
@@frasercain Thank you. :) That's exactly what I was thinking, but I had to ask in case.
“Coruscant” When eventually the earth is tidally locked with the moon wouldn’t be bad for whatever city or area that was underneath the Moons shadow ?
if the rogue planet was moving at relativistic speed (10% the speed of light - and these do exist) ... depending on its mass wouldn't it just maybe partially get torn apart, but most of it would just pass through? My related question would be - what if a planet sized object moving at relativistic speed hit a black hole head-on ... would the time dilation near the event horizon basically just cause it to spaghettify into the accretion disk because time slows down so much at that point (in other words - nothing can pierce the event horizon "period" without going through the accretion disk first.
Oceanside Telescope....nice..... if it wasn't for the rain, much of the island would be excellent viewing areas.
I have dark skies on my island, they're just hidden behind the rain clouds
@@frasercain I'm familiar with that Island....lived in P'ville for years.
You had a good view of my home island from there... Hornby. :-)
Kamino for sure
Hey Fraser, since the universe is expanding, shouldn’t a wide spectrum telescope see a light trail going from infrared to ultraviolet instead of a fixed point image of a star? Like a slow shutter photo of a hue changing car headlight?
I mean, light emitted 10b years ago from a star reaches us with a different wavelength and position in the sky than the light emitted by that same star 5b years later, right? Shouldn’t that draw a light trail?
Love your channel, thanks
Thanks Fraser. Got it now. Your channel is one of those ever rarer places where the internet is still, against all odds, unbelievably amazing.
Answer:
m.th-cam.com/video/WSt1AqPYdkM/w-d-xo.html
Please explain dust. Is it microscopic or planet sized or both?
hey
its looking a bit dark in there
any plans to bring back the old bright forest green screen ? lol
Personal opinion: Starship + superheavy will eventually become a successful system. Further development of Starship will also then occur... it may take a lot of trials. I doubt that they will try to catch the booster until they do many trials and have some confidence.
at 30:20 Yes, that's a great idea. An AI factory rendezvous with a comet and grows/manufactures AI spacships, launches them on separate orbits to go to cislunar space by using the comet volatiles as reaction mass? Should be possible less than a century from now.
Sounds good, let's get to it. 😀
Kamino. I'll bring a cat and name him "Spot" 🐱
I encountered the Idea of an Ice Spaceship back in 1979 from a book by Walt Richmond called "Gallagher's Glacier" Aswsome story!
Speaking of ice spaceships, couldn't we find a small asteroid (say, building-sized), park it around the Earth, hollow it out, put some thrusters on it for maneuvering, pack up all we need, fire up the thrusters and just keep using the rock as a spaceship?
Kamino for the stew.
Would the JWST be able to see an exoplanet in the Centari system?
Ignoring the pure science fiction aspects, do you think that the book Project Hail Mary by Andy whier has an accurate representation of interstellar travel? How close could we get to the technology used in the book?
Pet space crickets: Fun and delicious.
Hoth
I am inspired by all the places where we can look to narrow down the answer the Fermi paradox. And places in our solar system that we can colonize early days.
Kamino
I disagree with your proposal that crickets would be used as protein source though since there are many protein rich plants available and I'd eat beans and legumes 24/7 before a cricket ever gets close to my mouth. Now, if we found a planet that has fish, I'd use the crickets as bait.
They asked about pets. Are plants pets?
COOL!
Hey Fraser I can't find my original question I had. It had to do with the expansion of the universe and u told me to DM you but I couldn't figure out how to do that
Would it be possible to build a Rover / Robot / craft that could "land" (Float) in the atmosphere of Jupiter, without falling further, and getting crushed? something that could navigate inside the atmo of Jupiter and send us back data?
Jupiter is probably my favorite planet in the solar system, and I just want to know more.
It's really tricky since Jupiter is made of hydrogen, the lightest element. The only thing lighter than hydrogen is heated hydrogen, so you'd need to have a balloon that can keep hydrogen gas heated up.
@@frasercain so, hypothetically, if we found a way to do it, we could have a hot air balloon, dangling a robot, cruising around Jupiter.
*Assuming we could build something strong enough to handle the travel there, and then any crazy winds / weather it could encounter while there, and any associated pressure changes in the atmo associated with it.
Sounds like a plan to me!
@@frasercain Would a small nuclear reactor help in heating the hydrogen?
Hmmm... Not a bad question.
I've been saying for years that crickets are the protein of the future. They are quite common as a food in Mexico, I've seen them mixed in with guacamole and as a pizza toping. I've tried them and they're... meh. Given a choice I'll take steak every time, but on Mars you're not going to get that option. I can also see beef becoming too expensive for the average person to afford to the point where crickets make more sense.
Metal eating Cyber space locust swarms ... Yeah, no
How many guests show up at your dinner parties?🤮
@@edwardrichard5665 lots show up, then they all quietly leave. I don’t get it 🤷♂️ 😆
Tardigrades are the best space pets as they can survive in space, so I heard
The kind of pets you get whatever you want to or not, alsk called pests.
What does cricket stew taste like?
Great channel!
Maybe lab grown meats would be more palatable than bugs..
Unless it's bug meat.
Spaceships made of ice must be a Canadian idea? Where the astronauts will ice skating around in the spaceship? But the hockey sticks, those you leave at home?
We tried to make an aircraft carrier out of wood and ice during WW2. th-cam.com/video/xKZr2jMSagU/w-d-xo.html
What's that sport with the brooms and the rocks you slide across ice,... it sounds like that in reverse, ice is sliding between the rocks..
@@petevenuti7355 - it could be many more will appreciate a rocket made of ice, not only the Canadians, and those rocks can double as pets also, as some suggest we use instead of cats and dogs
Aren't comets essentially icebergs in space? Maybe drill out living quarters inside one and attach rocket engines on it etc.
Mrs Richards: "I paid for a room with a view !"
Basil: (pointing to the lovely view) "That is Torquay, Madam ."
Mrs Richards: "It's not good enough!"
Basil: "May I ask what you were expecting to see out of a Torquay hotel bedroom window? Sydney Opera House, perhaps? the Hanging Gardens of Babylon? Herds of wildebeest sweeping majestically past?..."
Mrs Richards: "Don't be silly! I expect to be able to see the sea!"
Basil: "You can see the sea, it's over there between the land and the sky."
Mrs Richards: "I'm not satisfied. But I shall stay. But I expect a reduction."
Basil: "Why?! Because Krakatoa's not erupting at the moment?"
I oppose Starship because it is too complex and fragile; a lot could go wrong with it. Remember the Space Shuttle of which 2 out of 135 flights were disasters. Would Starship have the same rate of catastrophic failures? How would that impact the public perception if a hundred people were to die?
In its place, I would have Sea Dragon, an old 1960s design for a huge, reusable ship with a 550 ton payload. It is an extremely simple design. The simpler something is the more reliable it becomes. It would be launched from sea, thus avoiding the destruction of a launch pad.
I have done a Google search and found out the sun is travelling at 448,000 mph. Does this mean that if you set off a rocket in the opposite direction. It appears to us that it is moving forward. However, it's actually travelling in the same direction as the sun?
Discovering relativity, are you?
I wonder what that Google result measured the sun's speed relative to? What was their frame of reference?
Hey a question. Do any major laws of physics change when we add or subtract dimensions from the universe?
Fraser, If you're planning on talking to Phil Plait - I'd appreciate if you press him on what kind of evidence would demonstrate that UFO/UAPs could be of alien origin.
I 100% share his skeptical worldview - and I don't believe for a minute that these things are alien - but his "What would it take to change your mind" answers have been weak on this question IMHO. See his recent interview with JMG
I'll have to check out the interview, that sounds cool. Phil has been a big inspiration for me, so I'll see if there are any ideas I can pass along.
@@frasercain If you don't have anything set up yet, I think he'd 100% be down for an interview with you to talk about his new book
Hi did I miss the raw stream link for this one?? Can’t seem to find it
No Pets??? If I can't take my critters with me, then I'm not interested in going.
Conditions of the tornado on earth compared to everywhere else seems so much like these black holes and if you remove the air and atmosphere and look at the possibilities of speed this thing must rotate no wonder it cares everything apart and sucks it in you know it ends up somewhere else
Naboo :)
What hapens if you leave a big mountain like ice in space?
SpaceX infrastructure needs to be dispersed away from the launch/landing pattern. It worries me whenever I look at it. There were some great achievements. The rocket held together well in the circumstances. Just launching it was great. Having so many engines firing. My other concern is the risk of hurricane damage close to sea and sea level. Do we need nuclear power to populate space? Generation 4 fission reactors.
Solar eclipses are spectacular because the Moon and the Sun are the same size in the sky. Would lunar eclipses be drastically different if the Moon was the same size as the umbra, or even slightly bigger?
29:05 Why would you say that? An average ISS mission is about 6 months. Staying alive and safe in micro gravity for 6 months is one of the few things we know how to do and we know it works.
Under the protective shield of the magnetosphere where radiation is only a little higher than flying in an airplane. Where resupply flights come up ever few months to bring fresh food and take away your trash. That's nothing like a deep space flight to Mars.
Coruscant