Other Worlds on Earth: Preparing for Space from Home
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- เผยแพร่เมื่อ 11 พ.ย. 2019
- Other worlds don't seem very welcoming to us Earthlings, and it can be hard to practice our off-world explorations from millions of kilometers away. But Earth also has its fair share of hostile places that we can use to prepare for those unfriendly environments.
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Host: Caitlin Hofmeister
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Sources:
www.smithsonianmag.com/travel...
www.nasa.gov/image-feature/am...
www.nasa.gov/ames/arads
www.pri.org/stories/2019-09-0...
www.esa.int/Our_Activities/Hu...
phys.org/news/2017-09-lava-tu...
www.vice.com/en_us/article/bj...
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Images:
www.jpl.nasa.gov/spaceimages/...
www.istockphoto.com/photo/ear...
svs.gsfc.nasa.gov/4014
www.flickr.com/photos/abhinab...
www.flickr.com/photos/boblins...
www.istockphoto.com/photo/cue...
www.esa.int/ESA_Multimedia/Ima...
www.esa.int/ESA_Multimedia/Ima...
solarsystem.nasa.gov/resource...
www.jpl.nasa.gov/spaceimages/...
www.istockphoto.com/photo/veh...
www.nasa.gov/image-feature/am...
www.nasa.gov/image-feature/am...
commons.wikimedia.org/wiki/Fi...
antarcticsun.usap.gov/science...
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The way you said "great grandchild might" made me laugh so hard I snorted, your sarcasm on this vid is on point!
Almost any place on earth: Hasn't rained here in a while.
Atacama Desert: Hold my beer.
"Hold my sand and salt" more like it)
Mars: Hold my empty beer glass because water around here goes from ice straight to steam.
@@michaelbuckers Hah :)
@@MasterKaravay No kidding. :)
This channel never fails to make me happy. Thank you.
We must prepare ourselves for living in *Proxima b*
Thats were the Helgan lives 😏
Or play death stranding while eating pizza at home??
Hard choice 😂
We dunno what it be like there yet
@@melvinjansen2338 safe to assume it wont be pleasant, it's too near to its parent star and the star in question, while small, is also of the variety that tends to fluctuate wildly in energy output, massive spikes in radiation, combined with strong solar winds, does not a comfy place make.
@@boiwaif 🅱️
Lava tubes? or MOON MOLES!
I love how she explains!!!
She doesn't blink "^^
I am not a scientist. I am a musician...and not a very good one at that, but I've learned to break down music into it's basic parts and then reassemble them into new music. That said, it seems like the best and safest way to get to and from Mars initially (or, rather, the best mindset for just such a thing) would be to dip our toes in the water first. The close proximity of the moon to Earth meant we could stay just a bit but not necessarily set up a Moon Resort right away. But now we could set up a way station there. Send the Mars-bound astronauts to the Moon for a spell to acclimate to the Moon's gravity and then launch them from the Moon to Mars to spend an unspecified short amount of time on Mars to acclimate to its gravity and then return them home to re-acclimate them to Earth's gravity. The relatively short trip to the moon would minimize zero gravity affects on the human body then give them a small gravity reminder while on the moon. A relatively shortened trip to Mars from the Moon not solely reliant on chemical propulsion would minimize the affects of zero gravity, and affecting solar radiation could be minimized by filling up a water shield built into the Mars craft which could be filled by water made on the Moon. Getting off the Moon is a lot easier, weight-wise, so carrying water or oxygen made on the Moon and a chemical fuel to Mars (which would already be on the Moon base) would make it easier in conjunction with Mars' lower escape velocity send the astronauts back to Earth in a relatively short amount of time. It could also be argued that a trip back to the Moon base for a spell would give the astronauts a gravity reminder and time for all involved to double check parts and systems to assure, as much as possible, a safe trip back to Earth versus a straight shot from Mars to Earth which would leave us kind of crossing our fingers. It's just a thought... Phx Bias
You forgot to mention Twitter, one of the most hostile places on earth.
I love how positive you are! Like the ant who had high hopes with the rubber tree plant! LOL❣️
1:17 - air? On the moon?
Gas can exist in underground tubes even without atmosphere, but I agree the reference is pretty strange; I don't think air of any sort has much to do with it. Molten rock sheds heat when it contacts anything, like the ground -- basic thermodynamics. The outermost parts shed heat faster, until it solidifies, which insulates the still molten inner molten rock from losing much more heat, so it stays liquid and keeps flowing out. Eventually, a hollow tube is left behind, likely initially filled with toxic gases, though those too will eventually seep away. AFAIK, no air required.
The dark plains on the moon's near side where these tunnels are located are the result of some partial melting event about half a billion years after earth (and moon) first formed, I'd assume these tunnels formed as this melt cooled down, in which case any air present would have been volcanic gasses and rock vapor gassed out as it melted. Both of these kinds of atmosphere are heavier than nitrox gas and so would have taken millions of years to escape the moon's gravity. Though as Bear said, it's not necessary for any air to be present anyway.
Wow I had an idea of building a tunnel under the moon to make shelters and build a launchpad on the moon for a long time ago. I thought it was a good idea and finally someone creative enough manage to think that through...
Imagine if one of those moon caves has something living inside of it that’s just a creepy thought to explore.
"We wanted so bad to live on the moon…we thought it was our last hope…after _The Climatic,_ it was all we could inhabit. We put everything we had in that move…
But we didn't know about the worms."
Makes me think of the Hive from Destiny that hollowed out the moon and built massive fortresses underground.
It's very good to see the North Avenue Trade School represented in SciShow! Go Jackets!
The ESA photos look a bit like still from the movie Prometheus. Scary stuff
YAAAAY ITS CAITLIN !!!!!! ok watching the video now.....
The *more* weird places we explore the more prepared we will be for weird things found elsewhere.
Edit was to correct spelling.
3:26 That looks like some of the things I've built with Legos.
could you use the magnetosphere to generate electricity by making copper tube around the poles and moving iron magnates thru them? the same thing should then be able to spin the iron core back up, like a flywheel in an engine....????
we need to spin mars iron core, to make a magnetosphere. that will protect whatever atmosphere we are able to make. i think this can be done by putting massive amounts of energy into the poles.
Earth has Earrthlings, Mars had (possibly has) Martians therefore I deduce that should there be life on Europa they will be called Europeans.
Lol I wrote a story about Europa's aliens and called them Europans just to not confuse people.
Lunar lava tubes.
I'm not saying it was aliens...
But it was aliens.
The aliens that we will become.
a prospect of living in caves on mars is way more romantic than trying to save own planet
I'm sure a lava tube is a nice place to live, but they'll need rebranding. I just hear General Grievous, "I am sending you to the Mustafar system in the outer rim. It is a volcanic planet. You will be safe there."
3:24 that unit would be terrible.
Maybe we should practice terraforming our hostile environments here on earth... like reversing desertification around the Sahara?
I love how you pronounce Lanzarote, Lanz-a-wrote-ayy ! 😂 Europe call it lans-a-rot-ee
Question: From what I have heard in documentaries, and PLEASE correct me of any ignorance i portray, Snail fish are the deepest dwelling fish and vertebrate in the ocean. No other vertebrates are found below the depth they are because of the water pressure destabilizing the proteins in their cells. So if Europa does have an ocean, then what effect would the extra pressure have on simple multi cell life or single cell life. Certainly they are far more resistant than vertebrates but don't all cells have similar basic laws of operation where species limits are set, protein structure stability, osmosis, and other basic cell functions? What depth or pressure would the most resilient life form at the deepest possible part of our planet be able to withstand on Europa, and by extension how would the evolution of potential life occur at such vast depths and pressures. Would chemistry function the same? What is the maximum pressure of the proteins that make up the most basic amino acids needed for the simplest life form? Sorry, I was very much hated in school and never quite grew out of the 1000 questions so I'll stop now:) Thanks for the great video I cant wait till we have some form of eyes on Europa, and how the heck we are going to get through 20km of ice when we have issues and technical problems all the time drilling here on Earth.
Gravity is far lower on that moon compared to earth I'd think. So pressure would be less of an issue!
@@DugganSean ...wow I feel lame for not thinking of the lower gravity lol derp on me, but still miles of ocean and 20km of ice on top, given the assumption that life evolves around hydrothermal vents a big assumption but valid in this case i think cause where else on Europs is it gonna evovle i highly doubt it would be in the water column cause even here on Earth organisms down a certain depth rely heavily on marine snow and thats a whole other can of worms, but essentially it would still be far greater than anything here on Earth, I wish i could math id love to calculate what the approximate pressures are like on the bottom of Europa oceans and if it would impact cellular life or even influence its evolution.
and i could have summed all my babble up with a simple " id love to calculate what the approximate pressures are like on the bottom of Europa oceans and if it would impact cellular life or even influence its evolution." lol im special
@@joshuad5300 you would probably need to wait for data from the europa clipper, we should know a lot more about any subsurface oceans at that point. all our info is from quick glances while flying by on the way to somewhere else, but once we have a dedicated probe make multiple passes by europa we should have a lot better idea on the depths and pressures of the oceans.
@@joshuad5300 we all have derp moments. if you haven't seen this channel on futurism/space (and more topics) could not recommend higher.. th-cam.com/video/At2BWcWqxRA/w-d-xo.html
65 million years of evolution and we are back to hiding in caves lol
My nagging question lately is whether or not low (moon/mars) gravity will have horrific side effects. That could end our dreams real quick.
No they won’t end our dreams. We need to adapt to the most common planets out there, no matter how hostile. It could be that a separate species of humans evolve specifically for low gravity conditions and they may even develop superior qualities - who knows. There are also techniques that will stop muscle atrophy such as exoskeletons in reverse.
We would probably evolve and become taller if people are actually born on the moon. Other than that it will probably be mostly an annoyance until you enter an area with artificial gravity, aka a spinning tube.
Well, played Caitlin. Perfectly paced delivery.
The Moon Is A Harsh Mistress by Robert Heinlein
Thanks for your joyfully done work, other world Lady. o/
Obviously NASA keeps forgetting about the Martian colonies that are a few hundred kilometers under the surface
yeah. obviously :- ) What makes this so obvious?
@@istvansipos9940 well, I guess it's only obvious if you've been to Mars and talked to some Martians...
@@DoctorX17 and you haven't. right? in that case, you were just kidding and I did not realize. It is hard in written form. especially with all the crazy conspiracy stuff all over in the comments of space related videos
@@istvansipos9940 I vacationed on Mars once... Just gotta find the vacation pictures :P
Ok everyone we’ve developed interstellar flight... downside is we have to go back to living in caves 🌚
Ook, ook, roaming charges! AAAAArgh! This makes Moon-citizen Urkko angry!
Do we know of any non-carbon-based life? If not, that seems to imply carbon could be equally important as water
Lava tubes can form when cool air solidifies the out layer of a lava flow.Did the moon have air at some time?Or am i thinking to much into the tubes and a slip of the tongue?
What happens when the lava flows back?
on the Moon and on Mars (vulcanically inactive bodies), that can't happen. On Earth, these research statains are probabaly outfitted with a gazillion of warning systems. because lava flowing back would be bad news, indeed. well, for a handful of people. on the other hand, way more fellas died in stupid accidents while I was writing this comment. thus, lookiing at the big picture of humanity, nothing happens if some lava flows back
I laughed way too hard at "but it's great grandchild might" XD
3:08 CHILE!!!
Ancient humans lived in caves on Earth.
Modern humans plans to live in caves on Moon.
Is it possible that some of the 'lava tubes' were created by meteor impacts?
As in case of mistaken identity?
do the test runs in a space suit and nappies and see how long you last
We get to be Moon men, AND Mole men?
Sold!
We haven met the Mole Men, and they are us.
Hans mole man? Boo-urns?
Ridge wallets? Is Anthony fantano secretly behind this video?
The moon has an atmosphere. It is just so thin that it does not do much.
Some few centimeters thick. Less than twenty if I've the correct recollection.
1 hundred and third! Don't be jealous
Dude someone is going to cave dive on the freaking moon some day
Does Mars have a big enough atmosphere to burn off micrometeorites
Hostile enviroment for humans?
Sure, come to my country, Honduras. The NASA could train here for an alien invasion.
Want to marry me?
@@ketsi3079 , as long you are not a dude.
@@betoen but i am
@@ketsi3079 , keep walking, man.
@@betoen nooooo! I love you man!
Future human live in cave 😆
Also love when she presents. So cheerful!
Cool air? On the moon??
I saw a documentary about 10 years ago about this.
Earth's hostile places have air and heat during the day. Also gravity that matches the human body. Mars has none of these things so the tests are mostly useless.
Mars has less gravity, but it still has gravity. It also has, albeit less and much colder. I wouldn't call the tests useless at all. Even just knowing it is working as intended on Earth and making whatever adjustments would be needed for Mars would help tremendously before actually sending people and machinery 100 million miles away
Here I was expecting this to be about the game Outer Worlds
Cool air? On the moon?
Mars probably was habitable much sooner . The fact that the water evidence sea rive beds gullies sediments are still around. At speed of the Martian wind.
And at rate Mars is loosing it's atmosphere. How far back in time before atmosphere become thick.
Labratory?
Zubrinnnnn
Crazy conspiracy theorists: THE MOON IS HOLLOW!
Scientists decades later: .... actually kinda sorta maybe
wow i can understand what she's saying this time..
Me while watching the video:
Ey! They are talking about lava tubes, like the ones in my island.
Woow! They named the Canary Islands where I come from. Cool!
Wait wait wait, what? They are training astronauts in MY ISLAND and I didn't know???! AWESOME!
After mars... Lets colonize VENUS
Floating cities like in star wars here we go!!
Who else goes straight to find muscle hank?
No thanks. I'll continue to live here on Earth.
Don't wear out your welcome
Going anywhere but the moon first makes no sense.
Um, we did.
@@adm0iii I mean as far as setting up our first off-world base.
Okay, but base for what? As a way-point for further travel, orbital stations are much more efficient. As a mining base, it depends on what rare mineral is mined, and the Moon has much the same minerals as the Earth. If it's just a tiny base of only a few people, just to develop and prove the concept of bases beyond Earth, that's the only reason I can think of to put the Moon first. Even then that role is mostly filled by the ISS.
@@adm0iii Yes, for developing tech for future bases at Mars...starting at mars would very likely be a one-way trip, with zero chance of rescue if anything went wrong. It would also be expanded as time went on to fulfill whatever other needs (mining for materials to use, since bringing materials from earth is quite prohibitive, etc). Gotta learn to crawl before you can run.
Another classic TH-cam pronunciation gaffe... "Lanzar-oh-tay"!! It's "Lanzar-otty".....
I'm inspired to start using "Engigilish" to describe this sort of thing!
@@DrunkNamedJohn Do we have to follow the Spanish pronunciation when speaking English? After all, we say Paris not Paree. For that matter we say Spain not Espana.
_All_ words were foreign words before they became English words that are pronounced and used the English way. But most words are _not_ English, and if we use a foreign word, we attempt pronounce it the foreign way to make that clear. But there's a wide transitional phase when a foreign word becomes full adopted into English, where there's a mix of use and pronunciation, with no official "right" or "wrong" way; if you're speaking to a person who speaks the word's original language, it's probably clearer to use their pronunciation, so it's good to know that pronunciation.
yes it does, try to go into hell's kitchen when it has been sweltering hot for a week and you look prim and proper.. that is a good hostile environment to train in..cool go to the moon and crawl into the tunnels.. This is all way cool.. But my question is why are we spending all this money to find life.. How will finding life change anything here at home..let's just get there and then when we have the time, see if we can find life.. I know that some of the experiments to find life are actually designed to see if we can survive on other planets.. Looking for water and minerals and such.. but the pure "let's find life" experiments seem to me to be holding us back a bit.. if we could pour our time and money into one goal, getting man to the moon and to mars.. it might happen faster.. I am getting old now and want to see a base on the moon at least before I die.. Well, carry on, be safe and thanks for all of these video's you put out.. I enjoy them immensely!
If they find life, it can give clues as to how to sustain humans, on those planets/moons...
@@christelheadington1136 Yes that is true.. I had not thought of that.. good point!
@@AuntieDawnsKitchen why? will it stop wars? will it feed the hungry? will it give the poor man a job? Weill it make lonely people happy? Moral, ethical and philosophical changes feed no one.. help no one.. and certainly will not stop a bullet .. They just make fool's feel like they have done something so they won't have to actually try and help.. so please.. stop talking and do something because if your waiting for the life on another planet to save you.. well.. no need to explain more.. Just take your head outta the sand and look around you..
@@DrunkNamedJohn your you comparing reading a book to discover microorganisms? Ok.. the study of things on earth is not what we were discussing here.. it was things like sending probes to io to break through the ice to see if there are bugs there.. While it is exciting. (my original point was) we should be spending that time and money trying to set up a base on the moon or mars . While feel good stuff in nice like reading a book or the warm cozy feeling people say the earth will feel when we do discover other life out there.. That feel good stuff does nothing to move us closer to a goal of getting out into space as a species. While your point was correct it was off topic.. thanks for you input Jerome...
Potat
Do Martians wonder if there is intelligence life here on Earth?
Not if they read TH-cam comments -- not compatible with intelligent life.
First
So it's a terrible wallet that can't hold receipts. Nice.
Scientists build all there models, assuming that the speed of light is constant throughout the all universe !!
This is fifty fifty the last time I checked.
fifty fifty!
It's really ridiculous!
Science is Make believe!?
LOve and Light
No, make believe is that thing science-deniers do.
@@adm0iii I love science and logic, i do not denier science i denied Dogma!
luckily, millions of better trained people check it. For a living. And they say it is a constant. So what now?
my granny writes something about war, and the military staff of Alexander the Great writes about the war. which one should we accept?
@@istvansipos9940 For example, if we will do science, you have to consider both your grandmother's testimony and that of Alexander the Great.
@@liavofra yes. and, in this case, we have to (and I do) consider your version (that the speed of light is not a constant). Correct me if I am wrong here, but this guess of yours is not supported by any evidence. Right? then I consider many decades of independent observation done by many thousands of trained people all showing that lightspeed is a constant. and we have absolutely no reason to think that it is different in another corner of the universe. because space far away shows no difference to space near Earth. with our measurements showing space (near and far) as a near perfect vacuum, constant lightspeed is nearly 100% (as solid as theories go), and not a 50-50 shot. kinda similarly, water is more dense than ice. And no1 will measure this on a far faaar away planet any time soon. so would you say there is a 50-50 chance for it on that planet?