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Astrobiologist Answers Mars Questions
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@theoldar
September 22, 2026 at 7:46 pm
This was great, but her full time job is selling Mars colonization. Thus her bizarre statement on terraforming Mars in our lifetimes.
@chrisjohnston5401
September 22, 2026 at 7:47 pm
For a scientist it’s very odd that you refer to temperature in fahrenheit.
@jaredbutler957
September 22, 2026 at 7:48 pm
Erica DeBenedictus is an excellent name
@nijego
September 22, 2026 at 7:50 pm
I hate it so much when you have a very specialized expert you can ask so many possible question and most of them are just questions you could literally ask your highschool science teacher and get a correct answer.
Like bro I don’t need an Astrobiologist to explain to me why the mars rovers batteries last so long, I CAN SEE THE SOLAR PANELS ON THE PICTURES. I need her to explain stuff about her job that a regular astronomer can’t
@scarecrow8004
September 22, 2026 at 7:51 pm
” Occupying Mars ” … just ain’t gonna happen. When I look at movies like Ghost of Mars and Total Recall, my thought is always, how did they get all of those huge buildings and trains and … stuff … there? There is no energy or infrastructure there to take raw materials and make all of that stuff and it would be incredibly expensive to transport all of the stuff you would need there. Yeah, a half dozen people being transported to Mars with enough oxygen and water to do some scientific research is certainly doable, especially if you launch a bunch of rockets with all of their supplies ahead and behind them. Perhaps in some far distant future when we have perfected Fusion power and transporter technology, we can start trying to colonize, but, it just ain’t gonna happen in any of my lifetimes or near-term reincarnations.
@alias1719
September 22, 2026 at 7:54 pm
No need for plants to create the atmosphere. Just re-start the oxygen generator buildings that are scattered around the surface of Barsoom.
@bryankilvinski
September 22, 2026 at 7:58 pm
3:10 but Mars does not have a magnetosphere
@vmizzell
September 22, 2026 at 8:10 pm
Within the next two thousand years we will have found habitable exoplanets. (“Earth type Worlds”, or “class M planets” on Star Trek.) We will still not have the technology for terraforming. Couldn’t we focus on FEASIBLE technologies instead of whatever Elon Musk is promoting in order to aggrandize himself?
@AlipashaSadri
September 22, 2026 at 8:12 pm
Why would you get an astrobiologist to answer spacecraft design questions? The big rovers can’t be powered via solar panels; they have MMRTGs (nuclear thermoelectric generators).
@rhetorical1488
September 22, 2026 at 8:20 pm
Sooooo Who else has seen Terraformars and knows how this ends. XD
@usucktoo
September 22, 2026 at 8:33 pm
What does negative 100 or 200 F mean?
@stuffedchest
September 22, 2026 at 8:36 pm
I have a question here… Is it possible or at least feasable to try to produce some type of “space termite” with the moon regolite and the mars rusted soil to produce some kind of propulsion method, energy production capabilities, or used to transform chemicaly the perchlorate found in Mars?
Thanks!
@ronaldocost4
September 22, 2026 at 9:13 pm
Yes, in principle it’s feasible, but more as experimental biotech and chemical engineering than as a literal “termite”.
But that is basically how space exploration works. Nothing is possible until it is.
@taylorsublett5710
September 22, 2026 at 8:46 pm
Isn’t perchlorate toxic to plants as well? Even if you could get enough water to Mars (BIG if), wouldn’t they also die in the toxic soil? Not to mention just getting freeze dried pretty quick
@WilliamCarterII
September 22, 2026 at 8:46 pm
Mars will ever be terraformed lmao. Its not industrially, or physically possible
@drwoody8632
September 22, 2026 at 8:46 pm
God took 6 days to make everything i bet we humans can transform mars in 5 days.
@neeni4
September 22, 2026 at 8:47 pm
Terraforming? My brain can’t get past ‘the dirt is toxic’ part.
@steveg6199
September 22, 2026 at 8:47 pm
Wonder if Erika is in some way related to Brennan Lee Mulligan. 🤔
@OrisOsiris1
September 22, 2026 at 8:49 pm
if we drop a colony of bacteria, tardigrades, extremophiles and other hardy creature on Mars, will they survive and thrive?
@bastianventura
September 22, 2026 at 8:52 pm
Whenever I play terraforming mars it takes around an hour
@grantadamson3478
September 22, 2026 at 9:01 pm
@3:10 you are dreaming girl. @17:48 you basically say nothing can grow in the regolith.
@sharondesfor5151
September 22, 2026 at 9:01 pm
I would watch the uncut version of this, if Wired wants to consider that option. Or a nicely edited long version.
@oldi184
September 22, 2026 at 9:02 pm
Thanks for not using the Celsius scale. 😂
Only the whole scientific world is using it. Except America, and we all know that ONLY America matters.
@speelbergo
September 22, 2026 at 9:08 pm
You just said they had toxins in the soil and then without any proof or explanation you also said that you think they can terraform it in our lifetime?
I’d like to see your credentials ma’am
And how much is Elon Musk paying you?
@TheWasi
September 22, 2026 at 9:14 pm
I love this nerd combo, a Mars logo on the laptop, one on the table, and a Mars globe.
@AntonioParraTellez-bo6wn
September 22, 2026 at 9:14 pm
No one will ever live on Mars. So much money wasted. Erradicate hunger first!
@almira0101
September 23, 2026 at 5:25 pm
Fahrenheit? in this economy? 😅 gurrl use celsius and metric like a good old scientist next time
@johnklaus4776
September 23, 2026 at 5:38 pm
How long would it take to re-terraform earth?
@campbella2796
September 23, 2026 at 5:39 pm
There are likely people who would volunteer for a 1 way trip to Mars.
@BajkonurBobby
September 23, 2026 at 5:55 pm
13:08 Hmm. Dinosaurs did not turn into oil… Trace amounts, sure, but no. To be fair she doesn’t specify the amounts, but thats quite a funny way of putting it.
@wakkawakkad
September 23, 2026 at 6:07 pm
Asking an astrobiologist astrophysics and geology questions.
@sademcmurrin
September 23, 2026 at 6:16 pm
Humans should not live on Mars considering how terribly we’ve treated Earth.
@Mp57navy
September 23, 2026 at 6:29 pm
I doubt her credentials. Mars CANNOT be terraformed. It’s missing a magnetic field to hold an atmosphere thick enough to breathe.
@TheGrahamCarter
September 23, 2026 at 6:49 pm
You dont want to launch when the planets are closest together, you would want to leave earth when the travel distance is the shortest, because Mars would orbit away as you travel. So the distance between the planets is irrelevant. It’s why they need all these complex equations to determine the optimal flight path, both planets are constantly moving at incredible speeds.
@WikiHomeSL
September 23, 2026 at 6:52 pm
Could you please show metric measurements on the screen for the rest of the world?
@Shiirya
September 23, 2026 at 6:58 pm
hmmm isnt the problem of mars not having atmosphere is a massive problem for everything so terra forming is a massive no, and forcing it to have an atmosphere seems pretty much impossible it would require massive amount of material and energy we might as well rip our planet to make mars agreeable
@ourv9603
September 23, 2026 at 7:03 pm
Id like to populate Mars with her.
!
@ourv9603
September 23, 2026 at 7:09 pm
A shuttle unmanned space truck needs to deliver rocket fuel to Mars in advance for the return trip of the crew.
!
@maki9724
September 23, 2026 at 7:27 pm
0:56 is there a website i can get every planet doing this? a video of every planet orbiting? please??
@JerónimoVisñovezky
September 23, 2026 at 7:52 pm
Can you terra form Las Vegas?
@madnessmethod2823
September 23, 2026 at 7:55 pm
i just stopped watching the video when she says Mars could be green in our lifetime. she’s too young to know better. the truth is humans don’t have the technology or experience terraforming planets. we don’t even know if we can do it so a better question is “can we terraform mars” not “how long does it take to terraform mars”
@xinnnnnh
September 23, 2026 at 8:00 pm
over million of years, any signs of life would have been easily been wiped away or buried so deep that we can’t get to it
@juan-lz7fq
September 23, 2026 at 8:06 pm
Someone should have asked if venus is easier to terraform than mars and why we should do that instead.
@davidbenson94
September 23, 2026 at 8:09 pm
Wouldn’t a terraforming effort be better spent on a planet with a magnetic field?
@macleunin89
September 23, 2026 at 8:16 pm
Mars becoming green in our lifetime?? 🧐
@MapMonkeyTube
September 23, 2026 at 8:20 pm
13:10 No dinosaurs were involved in earth’s oil production in spite of the common trope. The aerobic bacteria that could process carbon into reusable material for other life forms evolved long before any dinosaurs. The microbial mats that died with nothing to release their stored carbon until heat and pressure made them into oil, did so millions of years before any dinosaur existed. Dinosaurs to fossils works; dinos to oil do not.
@chrisheatley706
September 23, 2026 at 8:20 pm
Whenever I’m speaking to someone who suggests terraforming another planet, I am them if they think it could be completed in as little as 5 million years.
I’m not sure that’s possible
@craigcorson3036
September 23, 2026 at 8:22 pm
Mostly correct, but I’m surprised that you didn’t mention that Curiosity and Perseverance are RTG-powered when asked about the type of power sources used in Mars rovers
@erwinvangrinsven9345
September 23, 2026 at 8:50 pm
Every person needs 800 pounds of solid food per year, and there is no italian restaurant on Mars.
@xllxFISHxllx
September 23, 2026 at 8:54 pm
The one single reason I’m set on it being futile trying to terraform mars is simply because it’s core has cooled so much as there is no longer a protective magnetic field left to prevent any atmosphere being stripped off by solar wind faster than it’s created.
We might be able to have limited sealed habitats, but there is no way to make an atmosphere stay there
@ApocTheLegend
September 23, 2026 at 9:18 pm
I can survive on mars cuz im built different
@samuela-aegisdottir
September 24, 2026 at 6:59 pm
I am afraid that terraforming Mars is not anyway as easy as this astrobiologist puts it. All our experiments with artifitial biospheres have failed. And even have troubles to keep the ecosystems here on Earth functionable, which formed on their own and used to be thriving unltill we damaged them. She also did not explain how to keep breethable atmosphere on Mars when it has so weak gravity – that is the thing I would ask if we speak about terraforming Mars with a scientist. Not mentioning there is zero solution to the toxic space radiation. People having to permanently live underground or in aerosol greenhouses – that is not really how we live on Earth, so you cannot call it terraformed, can you?
@WayneMueller-ie7wu
September 24, 2026 at 7:06 pm
This channel while having interesting content is unwatchable every 3 minutes there are 30 seconds of commercials. This is awful!!
@samuela-aegisdottir
September 24, 2026 at 7:06 pm
A scientific channel that provides temperature only in Fahrenheit? The enetire scientific comunity use Celsius as well as 99% of countries. I get that you are targetting American audience, but there are other parts of the world. Can you at least add text with the temperature in Celsius?
@samuela-aegisdottir
September 24, 2026 at 7:08 pm
Lets try to keep alive our planet A first.
@DanielleshowsIam
September 24, 2026 at 7:12 pm
It would take until it developed a magnetic field, so never.
@samuela-aegisdottir
September 24, 2026 at 7:20 pm
“Mars might be green in our lifetime”
1. I doubt that. It is too small. That makes its atmosphere too weak.
2. Even if we could, is is really a good idea?
@CatalysisIcon
September 24, 2026 at 7:27 pm
nonsense. no life can live on/in another biosphere. nor locate one in another solar system. click-bait.
@DoggyHateFire
September 24, 2026 at 7:29 pm
It seems weird to me that they had an astrobiologist but only asked questions about going to Mars. Like, what about life on the Jovian moons or what would indicate the presence of life on far away worlds.
@themaroonowl
September 24, 2026 at 7:32 pm
Wait a minute… Wouldn’t it actually take _very little_ fuel to return because of the vacuum of space? That’s what I heard an astronaut say once about the trips to the moon, that it takes a lot of fuel to leave earth’s atmosphere, but once that is done, the rest of the mission takes very little fuel because you don’t need much in space, your ship will just continue traveling in the same direction forever, you would only need fuel for specific maneuvers which are relatively few. Why would this be any different than a mars mission? Obviously mars is farther away, but still, shouldn’t the same principles apply?
@AIUser-w9k9e
September 24, 2026 at 7:33 pm
Elon said he can terraform Mars in a few days. Sounds legit.
@DoggyHateFire
September 24, 2026 at 7:33 pm
Yeah, we’re not terraforming Mars in our lifetime. That’s just preposterous.
@andyl8055
September 24, 2026 at 7:40 pm
Nitrogen isn’t an inert gas on Earth. It forms a large majority of the atmosphere and it’s the main base reservoir that is transferred into the soil by bacteria and archaea.
Mars has plenty of oxygen; I’d be far more concerned about nitrogen. You can’t just replace it with Argon and call it a day.
@AnimeCwboy
September 24, 2026 at 7:45 pm
Without a strong magnetic field, one couldn’t be maintained.
@Eldervine
September 24, 2026 at 7:54 pm
I’m still genuinely so confused why so many people are keen on humans colonising Mars in the first place. We’re already living on the best (most comfy for us, and the craziest forms of life) planet in our solar system, and we can totally learn about other planets without actually having to live there. It also seems counter intuitive to want to learn about Mars, but also to make it more like Earth 😵💫
@jschmoe5170
September 24, 2026 at 7:55 pm
I don’t know but I am willing to send Elon musk there today to start the process and for him to call us when it’s done.
@danstenis660
September 24, 2026 at 8:09 pm
Why is everyone so obsessed with colonizing Mars? You said to live. That is true for our long-term goal. But for short-term, Mars serves as a base for exploring our solar system.
@SmallWhiteJewDick
September 24, 2026 at 8:17 pm
You can’t, it doesn’t have a magnetic field
@jonbaker3728
September 24, 2026 at 8:19 pm
But there is no magnetic field to hold the atmosphere in place, so you could make one, and it would blow away.
@shawnmurray9964
September 24, 2026 at 8:29 pm
Going to Mars is a one way trip, the human body cannot survive zero gravity for 6 months followed by 2 years of 38% gravity, then another year in zero gravity.
Entering our atmosphere would crush weak bones & crush a diminished heart.
Not gonna happen in our lifetime.
Maybe send the robots first.
@SeanIdus
September 24, 2026 at 8:52 pm
These ninjas and their billionaire bosses are gon leave us here, im sad tbh 😅
@BruceLee-b1c
September 24, 2026 at 9:06 pm
It can never be Terra formed, it has no magnetic core. Why is this being still discussed?
@rodenreyes6320
September 24, 2026 at 9:11 pm
If you drop and lose a vitally important screw(no spare!😢) of a vitally important machine, everything, everything is compromised?😮
@F4Mech
September 24, 2026 at 9:19 pm
pipe dream
@kilmer009
September 24, 2026 at 9:20 pm
Incredibly annoyed that this format is designed for short attention spans. Like she glossed over SO many advanced topics, it almost felt like I was watching Sesame Street.
That and she casually left out just how impossible the Mars trip/colonisation/terraformation is for so many other reasons. Save your energy for your own planet kids, Musk is lying to continue getting investors, that’s all. Earth is the only place hospitable for human life. Keep it clean.
@Nicholas-iw2xc
September 24, 2026 at 9:20 pm
Why she look like Brennan Lee Mulligan
@VinnCapp
September 25, 2026 at 1:56 pm
Elon can go to Mars to check it out for us, get back to me bud! See Ya!
@artembabych9702
September 25, 2026 at 2:03 pm
I may be wrong, but as far as I know, NASA’s Mars rovers don’t use solar panels. Both Curiosity and Perseverance use radioisotope thermoelectric generators as their power sources. In very simple terms, these are small nuclear power plants, and they don’t depend on the Sun.
@sunflowerbadger
September 25, 2026 at 2:23 pm
All of our “wonderful” industry… The very reason we want to leave our ruined planet…..
@urbanstrencan
September 25, 2026 at 2:52 pm
This was awesome episode 🤟🤟
Mars the next frontier 😊😅
@ITzLegit91
September 25, 2026 at 2:54 pm
As a HVAC person with over 16 years in the trade, I would wonder how would they cool and hear houses
@SRPM-yk9xw
September 25, 2026 at 3:49 pm
Dinosaurs turned into fossil fuels? Hmmm…
@David86Spec
September 25, 2026 at 3:52 pm
Without magnetosphere and it’s impact there’s no point of this kind of musings – no terraforming is possible. You cannot grow anything in marsian soil – toxins.
@David86Spec
September 25, 2026 at 3:56 pm
Ps we won’t colonize Mars there’s no point of it. Maybe not even far in the future. We should focus on Moon, and around planet bases. Maybe we will start harvesting asteroids. Maybe few centuries will pass when we will be able to go further.
@anoxicmoron
September 25, 2026 at 4:25 pm
MARS? a modern jet liner has a million parts made in a dozen countries, how the heck could you do modern tech on MARS, besides the radiation will get you before you even get there, and then you would need to live in the shelter of rocks. Nothing realistic – it is silly.
@anoxicmoron
September 25, 2026 at 4:26 pm
not right to pollute Mars with terrestrial microbes, plants etc
@GoshRussell
September 25, 2026 at 4:45 pm
It took almost 4 billion years for life to leave the oceans on earth. Mars lost habitability after about 2 billion. Implying life may not have survived or survived long enough to become complex. Or mars just never had life 🤷🏻♂️
Some people believe in Panspermia and that life may have originated on mars, but reached earth through violent events blasting material into space (such as asteroid strikes) we have found Martian rocks on earth, so it’s theoretically possible, though unlikely.
@davidbeppler3032
September 25, 2026 at 4:59 pm
We terraformed Earth on accident in just 200 years. Imagine if we tried to do it on purpose.
@radiator-gb7pk
September 25, 2026 at 5:18 pm
Thanks for the science and that lovely tiny hands lady
@davidbeppler3032
September 25, 2026 at 5:32 pm
Current SpaceX starship, when it works, can deliver 100+ tons of fuel into orbit for a refueling station for the Mars trip making that trip very fast, less than 100 days. Unless we build nuclear engines like China is, then we could cut that trip time in half.
@waynewright5023
September 25, 2026 at 5:55 pm
“If we have the technology to turn Mars into Earth, why don’t we just use that same technology to turn Earth back into Earth rather than going all the way to another planet??”–Dr. Neil DeGrasse Tyson
@ryanbrown982
September 25, 2026 at 5:59 pm
Love me a Mova globe. My 50th anniversary Apollo one is slowly spinning next to me…
@zapfacid
September 25, 2026 at 7:06 pm
I can’t stop thinking about Solar balls with all these questions
@ianmorrison9480
September 25, 2026 at 7:08 pm
A scientific video and you use Fahrenheit temperature scales? Really?
@yehpic
September 25, 2026 at 7:28 pm
I feel like Venus is more intriguing than Mars.
@alexsubotich2652
September 25, 2026 at 7:57 pm
It’s not possible till you get a magnetic field first.
@johnbutler825
September 25, 2026 at 8:05 pm
Just as people aren’t writing software anymore, they are telling AIs to write software for them because they are so much better at it, people aren’t going to do space travel, AIs will do it for us, because they are much better at surviving in space and at telling us what they find. Robots with superintelligence are at least as near in time as the capability to get humans to Mars and back, so this idea of going to Mars with humans, in any quantity, will abruptly end.
@i-love-bugs-rain-weeds
September 25, 2026 at 8:21 pm
Well we know humans are good at warming up earth so it’s just a matter of time before the environmentalists are protesting on mars
@Lumeniaellina
September 25, 2026 at 8:33 pm
Why don’t we fix earth first…
@gfpcware
September 25, 2026 at 8:41 pm
Regarding the terraforming of Mars (defined here as creating an environment as similar as possible to Earth’s) so that humans can inhabit the planet:
Due to its low mass, Mars’s surface gravity is only 38% of Earth’s, and its escape velocity is 5.03 km/s (compared to Earth’s 11.2 km/s).
Astrophysical models estimate that, given its gravity and average temperature, Mars could naturally retain a stable atmosphere exerting a maximum pressure of only 0.2 to 0.3 atmospheres (roughly 20% to 30% of Earth’s sea-level pressure). Therefore, any attempt to give it an atmosphere identical in density to Earth’s would fail.
So… pressure suits and airlock-equipped habitats forever.
@IronWolf123
September 25, 2026 at 9:08 pm
Fun fact: Italian astronomers discovered channels on Mars and due to translation errors due to the Italian-English translation of “canali”, English people thought it was Canals, not Channels. This inspired the idea of Martian’s and alien settlers. Because of this error, it ended up inspiring War of the Worlds.
@DemonicAngelKiller
September 26, 2026 at 10:47 am
you know the bleach in mars ground could point to aliens or do you think its natural? maybe some one had to decontaminate the hole planet or it was a way to destroy the planet.
@walther2492
September 26, 2026 at 11:18 am
You confuse our “bleach” with naturally appearing sodium chloroxide. We just made a product out of this and called it “bleach”. So no, no aliens who used “bleach” – especially since there are far more effective methods of sterilizing a planet.
@DemonicAngelKiller
September 26, 2026 at 11:54 am
@walther2492 thanks for the reply
@jondoe9389
September 26, 2026 at 10:57 am
I’d be more interested in a video on why it is possible to terraform mars even though the core of the planet is dead and it has no magnetic field.
@thelonewanderervn
September 26, 2026 at 11:41 am
This girl cannot even survive Mars let alone terraforming lmao
@Mamta-e3j2r
September 26, 2026 at 12:07 pm
How many of your think Elon Musk will successfully land Starship on Martian surface ?
@emincanp
September 26, 2026 at 12:10 pm
5:00 Can we build a station of sorts between mars and earth to help?
@BobStein
September 26, 2026 at 12:32 pm
Can I skip to the Amazon shopping list? Gotta be a kit for that by now …
@davidmcroberts8502
September 26, 2026 at 1:10 pm
Prbly 3-4 thousand years
@marshalljones3341
September 26, 2026 at 1:45 pm
We can’t even reverse climate change here let alone on another planet
@apollo21lmp
September 26, 2026 at 2:14 pm
about the adobe habitat. wouldn’t the “local materiel” be too contaminated by radiation to be safely used as a habitat?
@jameswong9756
September 26, 2026 at 2:31 pm
Instead of one ship, you could launch 2 ships. The 2nd ship has all the things that you need to get back to Earth or spread them between both ship to minimise the risk.
@peterrauth3387
September 26, 2026 at 3:15 pm
Mars does not have a magnetosphere. Please address that first before you blather on.
@jeremykraenzlein5975
September 26, 2026 at 3:57 pm
For the trip to Mars, wouldn’t it be possible to simulate gravity by spinning the ship during most of the flight? If Mars gravity is 40% of Earth’s, then we might spin it to simulate 70% of Earth gravity, to make the Earth-to-space and space-to-Mars transitions easier.
The “Aries” ship seen in “The Martian” had an interesting design where part of the ship didn’t spin for stability and docking access, but part did so that the crew could spend a lot of the trip in simulated gravity.
@carterwiedman8602
September 26, 2026 at 3:59 pm
Terraforming isn’t the issue, who cares how high or low the ground levels are? The problems needed to solve are the ones to actually make Mars livable. You have to worry about atmosphere, temperature, and water.
@liv328
September 26, 2026 at 4:35 pm
Wouldn’t it just be better/cheaper to save/terraform Earth? This is the most logical option to me anyhow.
@spatulademigod
September 26, 2026 at 5:33 pm
No magnetic field means no atmosphere means ain’t gonna happen in any foreseeable future.
@shayewallace-snow6270
September 26, 2026 at 5:36 pm
i find it so fascinating that we have earth, perfect conditions for us to live on a miracle really and we’re all just destroying it, then want to go to another planet to try and make it the “same” as earth. why can’t we just appreciate and love the planet we’re already on, we just destroy and then move on to destroy more it’s sad.
@landofahhs_1
September 26, 2026 at 5:43 pm
Raw materials don’t matter, Mars doesn’t have a very strong magnetic field. Just like Mars original atmosphere, any atmosphere created by terra-forming will be stripped away by the solar wind. My question: What volume of Martian atmosphere would be lost if it were as thick as Earth’s…and at what rate? Also, does anyone intend to prove lava tunnels can function as shelter? I haven’t seen any data to prove such a thing is even possible…just words with no proof of concept.
@BaldAndCurious
September 26, 2026 at 5:53 pm
Reading the thumbnail: better question, when are we going to stop terra forming the earth?
@jamesgranger8085
September 26, 2026 at 7:05 pm
If you can Terraform Mars, Why not use the expense terraforming Earth?
@davethekiwibloke
September 26, 2026 at 7:36 pm
Why are so-called adults asking questions that an 8-yo would know the answer to?
@qadirtimerghazin
September 26, 2026 at 7:43 pm
Regarding perchlorates in Mars soil: the perchlorate anion, ClO4-, is really rich in oxygen, so it’s not necessarily a bad thing—it could be a good source of oxygen…
@lovelywaz
September 26, 2026 at 8:56 pm
How long to terraform?
As long as you are sleeping and dreaming about it!
@jeffpatterson5126
September 26, 2026 at 9:09 pm
Mars will absolutely not be growing food with an atmosphere in our lifetime. That statement is so ridiculous it’s beyond belief that any type of academic would make it. By WHAT method would this happen Erika? And what means would this non existent technology be transported to Mars? Do you know what the cost per Kg is to send mass to Mars? WHAT CLICKBAIT HORSE DROPPINGS> WOWZERS
@jeffpatterson5126
September 26, 2026 at 9:12 pm
I suppose the ‘scientists’in the sixties who foretold flying cars and jetbacks said it with a straight face too. You traded credibility for a spot on a YouTube episode Erika. You know very well that there is no way Mars is getting TERRAFORMED in our generation. Take down whatever diploma is hanging up because you just sold it for some clicks
@jeffpatterson5126
September 26, 2026 at 9:17 pm
Letting the masses of illiterate Americans believe that Mars is gonna be all ready to move in soon reinforces the American attitude of just absolutely not caring about climate change. It’s dangerous. There is no plan B planet. We will not be living on Mars before Earth is destroyed
@ahmermirza
September 27, 2026 at 3:43 pm
You mean to tell me they didnt even think about installing some kind of brushes on the Mars rover knowing it might just last a little further?? sus af 🤨
@fepeerreview3150
September 27, 2026 at 3:53 pm
12:05 Is that an image of Flat Mars on the desk in front of you?
@Ainar86
September 27, 2026 at 4:23 pm
Fun fact: perchlorate is bad for growing potatoes but great for making rocket fuel and other useful things for a potential colony. Also, any terraforming of the red planet would have to include raising of the atmospheric pressure to acceptable level which might end up harder than making oxygen or digging up water.
@danielitoforyou
September 27, 2026 at 4:48 pm
WARNING: this video has at least a couple mistakes, so PLEASE don’t take this at face value. This is my first time in this channel, but it’s not nice to lie to people.
I’m sorry to disappoint you, but MARS can’t be green in our lifetime. That is a HUGE lie. The Red Planet’s gracity is too weak, and so is it’s magnetic field, so it lacks a strong shield like Earths. People without a sunscreen often get sunburnt here on Earth; not sure why people have such high hope in Terraforming Mars….. Mars’ radiation levels are also much higher than Earth’s; even here on Earth people get cancer you know…. and so far there’s nothing we can do about it.
Defrosting kinda falls under the same category as Cryogenic Suspension, you know when on Scifi movies people are frozen and put to sleep for space travel. That is also a BIG NO.
TLDR: there is A LOT of handwaving in this video.
@inaamulhaq4736
September 27, 2026 at 4:53 pm
Mars got no oil? Means Americans not gonna go there
@MortalKoil
September 27, 2026 at 5:12 pm
Return trips aren’t a priority. Keep sending supplies, tools, and people to build the infrastructure to build what’s needed for return launches (and habitation). The first dozen manned excursions will be suicide missions.
And that should not be a deal breaker. For science!
@Blackronin357
September 27, 2026 at 5:55 pm
I love this series. Helping idiots every video.
@kevinpatrickcarey1001
September 27, 2026 at 6:05 pm
frig that I want to terraform her!!
@georgeschweitzer8378
September 27, 2026 at 6:07 pm
Can we really go to Mars?
@ravingdork64
September 27, 2026 at 6:10 pm
I lost all faith in her expertise when she said we might see a green Mars in our lifetime.
@mavieautomatique6645
September 27, 2026 at 6:15 pm
We will probably “terraform” a human for mars instead… using dna modifications and stuff.. raising that baby in an artificial womb.
@iambiggus
September 27, 2026 at 6:26 pm
You can always rinse the perchlorate out of the soil. That’s how I’m retconning The Martian, he just did it ‘off camera’ 😁
@FriedaFuzzypaws-f3h
September 27, 2026 at 6:31 pm
This should’ve been longer. Stop cutting her answers short wtf. She’s so interesting
@ZarbanDerek
September 27, 2026 at 6:32 pm
Another problem with planting potatoes on Mars is that there’s no organic matter in Martian soil, so there’s kind of no point in using it as a base.
@kwik0frez967
September 27, 2026 at 7:17 pm
First question is so stupid…
typical murican.
@Jimmy_Hills_Love_Child
September 27, 2026 at 7:24 pm
“How much would it cost to terraform Mars?” It doesn’t matter; we can fix Earth for less money.
@keithwilkey9584
September 27, 2026 at 8:12 pm
Humans want to ruin another planet after they ruin Earth 😂
@PiDsPagePrototypes
September 27, 2026 at 8:20 pm
Mars might get Greened, but it won’t get ‘Terraformed’, it doesn’t have the mass or the magnetic field to retain enough of an atmosphere. Just like on Luna, any cities built will be Underground.
Mars’s real advantage for humanity, is as a launch platform to the rest of the Solar System. Return-To-Earth for the first human-equipped missions will be easy. It’ll either be after the robotic construction of fuel making facilities, or the assembly of an orbital maglev launcher.
@Mayorclock3423
September 27, 2026 at 8:34 pm
Use Celsius for the love of guns America!
@John_Fx
September 27, 2026 at 8:42 pm
Mars is no place to raise a kid….
@John_Fx
September 27, 2026 at 8:42 pm
Why is astrobiologist a job when life has never been found other than earth?
@pgbollwerk
September 27, 2026 at 9:01 pm
Neil deGrasse Tyson has said repeatedly – if we can terraform Mars to be habitable, we can fix the issues on Earth that are driving us to want to leave Earth, at considerably less cost. (I’m paraphrasing)
@JLM1PB
September 27, 2026 at 9:02 pm
Who is paying her?
@michaeldowson6988
September 27, 2026 at 9:03 pm
We can’t even terraform Planet Earth.
@BrianDawson-n8n
September 27, 2026 at 9:21 pm
We’re “obsessed” with Mars because it’s far and away the next best candidate for humans to get off Earth, which we must do before the next world ending event, or else nothing humanity has ever done will matter.
@Greydays7481
September 28, 2026 at 2:16 pm
You don’t terra form Mars , you terra form Venus
@herbapou
September 28, 2026 at 2:29 pm
Its flat out impossible to terraform mars…. If you extract every water and gas you can out of all of the ground (which is impossible to do) , you still get only 5% of the required atmosphere needed. And that atmosphere would start to leak into space immediately since there is no magnetic field… “The Martian”, its also impossible to grow anything in mars soil since its toxic. Its like trying to grow potatoes in sand mixed with a gallon of bleech per 10 square feets…
@Zanian19
September 28, 2026 at 2:34 pm
I honestly have trouble believing any of what she’s saying, seeing as she claimed a green Mars would be possible in our lifetime. Unless she’s planning on living for literally thousands of years, that ain’t happening. Even our hardiest algae wouldn’t be able to survive on a cold dry planet like Mars.
@Jerakk30
September 28, 2026 at 2:34 pm
The whole concept of “terraforming” mars is nonsense. As Mars lacks a geomagnetic field, any atmosphere you’d create would be destroyed by not only solar radiation, but also stripped away by solar winds.
@Jerry_Fried
September 28, 2026 at 2:34 pm
We can’t even terraform earth.
@Latexi_LMX
September 28, 2026 at 2:44 pm
Can you use Celsius instead of Fahrenheit, this is a science program after all, right? So Mars temperatures agaiin, in a temperature of science, Celsius, thanks!
@HeyItsHimmmm
September 28, 2026 at 2:49 pm
Always curious if there will be a Mars Rover purely for adventuring and discovering large amounts of area in a shorter time. I imagine the unluckiness of landing our current Rovers in the middle of the Mars equivalent of the Sahara Desert, and that signs of life ARE there, they are just a few thousand miles East
@i.marchand4655
September 28, 2026 at 2:54 pm
How long to terraform Mars? Are we talking the planet, or the candy bar?
@jimmoriarty9714
September 28, 2026 at 3:40 pm
it would be cheaper to “re terraform” earth.. than spend all that money going to mars
@PoisonousTigerLily
September 28, 2026 at 4:10 pm
Is the ending of Total Recall possible? 😀
@VaqueiroAruanda
September 28, 2026 at 4:21 pm
Ok, haven’t watched it, but just came here to say: How about re-terraforming Earth first??? If it’s possible to completely transform the habitability of another planet, maybe try keeping this one habitable first? Just saying…
@Uniquemand
September 28, 2026 at 4:23 pm
It would take at least a week.
@sergiosantos7345
September 28, 2026 at 4:32 pm
Terraforming Mars, imposible.
@JosephDeLuna-yj8vg
September 28, 2026 at 4:38 pm
Ain’t Gonna Happen!!!
@イエスを求めなさい
September 28, 2026 at 5:51 pm
The initial trips to mars could very well be one way trips. This is pioneering 101
@rossmholden
September 28, 2026 at 6:28 pm
So on mars I’m 22!
@rossmholden
September 28, 2026 at 6:33 pm
And lighter
@DenkouNova
September 28, 2026 at 6:34 pm
08:04 “all of the modern Mars rovers actually use lithium-ion batteries” well now I’m disappointed : ( I thought they still had cool plutonium RTGs.
@Rovnijanko
September 28, 2026 at 6:37 pm
How about marsforming earth?
@MG2318-r6u
September 28, 2026 at 6:37 pm
You CANNOT Terraform gravity. The gravitational force on Mars is only 38% of earth’s at the surface. Human biology evolved in 1G gravity.
The body starts to deteriorate in low gravity ….which is why astronauts (who are super-fit) are given chairs to sit in after several weeks in space.
Bone-mass loss is only the most obvious of myriads of long-term health implications. Most of which are still completely unknown.
@MrFakit
September 28, 2026 at 7:44 pm
2 Earth Years = 1 mear
@bigtallwhitemonster
September 28, 2026 at 7:52 pm
Terraforming mars is impossible. You would need uv resistant bio domes or sysrting the core back up
@Scarlett_Grey
September 28, 2026 at 8:19 pm
It’s a planet not someone’s backyard garden. It’s also brutally cold. There’s also the perchlorates she talked about, the amount of sun, it’s gravity, total lack of atmospheric oxygen, if you go, you can’t come back, it has more of a charged particulate magnetic dust than dirt, no true access to water…….oh, don’t forget, you can’t go outside without a pressurized suit. Must have taken some mushrooms to say what she did.
@oldguysrule5895
September 28, 2026 at 8:26 pm
Much longer than it would take to terraform Earth. Who the F came up with this asinine notion that we need to go to Mars? Some rich ahole playing with his toys. If he was a real genius, a real man, he would
Spend his billions making Earth. Better place to live.
@richardj163
September 28, 2026 at 8:30 pm
NO POINT due to the lack of a magnetic field. Any atmosphere you create will be blown away otherwise.
@jcmgc
September 28, 2026 at 8:41 pm
It would take infinity years to terraform Mars.
@EngiRedbeard
September 29, 2026 at 11:50 am
Mars could not be green in our lifetime, this girl is an idiot. The shear amount of mass of gases needed to thicken the atmosphere would take thousands if not millions of years to transport to mars.
@LelleKidd
September 29, 2026 at 12:35 pm
A small, insignificant problem. No liquid iron core means no magnetic field, and thus no protection against radiation.
@8800ftw
September 29, 2026 at 12:51 pm
Can’t stop climate warming on Earth so Mars is going to be impossible.
@DavidRose-p1s
September 29, 2026 at 1:00 pm
There is no terraforming any planets, ever. What an utterly ridiculous concept. Only morons like Elon Musk and his bootlicking groupies would even seriously consider it.
@DavidRose-p1s
September 29, 2026 at 1:01 pm
You liked the Martian? Are you really a scientist? 🤡
@DavidRose-p1s
September 29, 2026 at 1:02 pm
Even if Mars had a magnetic field it’s impossible. How stupid.
@HjEt-c2l
September 29, 2026 at 1:33 pm
Great video
@jeffpadilla9891
September 29, 2026 at 1:42 pm
Infinity, since it doesn’t have a magnetic field like Earth you can never get it to support life.
@vondrake.meister
September 29, 2026 at 1:50 pm
No magnetic field = NO ATMOSPHERE.
STFU.
@willswitbooi
September 29, 2026 at 2:19 pm
I still know nothing about terraforming are you going to explain that bonkers claim? Xdd
@ceesklumper
September 29, 2026 at 2:19 pm
Ultra irrelevant topic
@ErikBergs
September 29, 2026 at 2:24 pm
The whole wind knocking down a rocket and being able to kick up a lot of large dirt specks and rocks totally threw me out of the movie right away. I was just like… isn’t the problem that the air is super thin? How can this be happening. Glad she touched on that.
@JohannPetrak
September 29, 2026 at 2:57 pm
Terraforming Mars in a few decades? I do not think so. Point me to papers which claim this is feasible.
@mississippirebel1409
September 29, 2026 at 3:08 pm
If you’re a Christian, you wouldn’t expect to find life outside of Earth, which we have not.
@usmansalim8352
September 29, 2026 at 3:21 pm
Erika is super cool
@mechawatt7844
September 29, 2026 at 3:24 pm
Here’s an idea! Let’s prove any of this is even remotely possible by terraforming the Sahara desert first! That would be a good test. Then maybe perhaps Siberia or Antarctica.
@Apeiron242
September 29, 2026 at 3:28 pm
How long it would take assumes that it’s possible.
Where are you going to get a magnetosphere?
Air pressure?
Warmth?
@TronJockey
September 29, 2026 at 3:44 pm
If seeding Mars with extremophilic algae strains where would we aim for first? If an area the size of an acre were to be successfully “seeded” how long before each area could be expected to double?
@bugtusslealien3931
September 29, 2026 at 5:40 pm
I love the German marching song Ericka.
@MRashid10
September 29, 2026 at 5:40 pm
Use the current resources to fix earth
@GeorgeGiann
September 29, 2026 at 5:56 pm
I don’t like the term “fresh humans” 😂😂😂😂
@andrew1202
September 29, 2026 at 6:01 pm
so if we even found trace amounts of oil on mars we would be colonizing mars within the month? uhm, historically speaking
@HiFraiz
September 29, 2026 at 6:23 pm
she runs a company convinces investors that they can terraform mars.
@sundareshvenugopal6575
September 29, 2026 at 6:56 pm
Mars has a thin layer of metallic rust , covering ice below. Seems incredulous.
@timothyjones3313
September 29, 2026 at 7:47 pm
You can’t. You could not stop the Atmosphere bleed. One day it will have none
@journalistedisoncarter
September 29, 2026 at 9:44 pm
Why bother with Mars when Earth is utterly f*cked up and in need of direct rescue?
@derrickunwin7623
September 29, 2026 at 9:57 pm
will you marry me please?
@sblaze4
September 30, 2026 at 12:58 am
Mars would not be green in our lifetime, I think you ate the toxin
@MatiasGeraldoThe2nd
September 30, 2026 at 1:54 am
Mars green within our lifetime? Absolute HILARITY
@MusickillerRus
September 30, 2026 at 5:41 am
Cold and rusty is a nice joke about redheads 😊
@IronKoro
September 30, 2026 at 6:17 am
It would take a couple of eternities
@KhattaMeethaOficial
September 30, 2026 at 6:51 am
Humans And Their Romantisization of Unachivable Things… 😂😂😂😂
@blitz3391
September 30, 2026 at 8:25 am
I like Neil DGT comment on terraforming Mars, which goes something like :
“I don’t see why spending Trillions and quadrillions to terraform Mars would be useful when we should focus on the Earth first for a fraction of the cost. Plus before Mars, we have the moon to play with.”
@cjchurchall-mckenzie2063
September 30, 2026 at 8:49 am
i wonder if there is anything worth mining on mars?
@LILEE376
September 30, 2026 at 9:32 am
First of all Terraforming is not a real thing, unless you are a Godlike creature. We should keep the Earth alive. This is a much easier task but it looks like it is too difficult for us.
@MCLIDILSS-o4w
September 30, 2026 at 9:45 am
Martian soil, Eating cement might be just as Detrimental to your health,
@dzalazar
September 30, 2026 at 10:32 am
loved it. actually wanna hear more about Mars!
@Porkcupines
September 30, 2026 at 11:25 am
Maybe solve Earth’s problems first.
@fatehyabali
September 30, 2026 at 2:08 pm
Hb
@Jehutythm
September 30, 2026 at 3:10 pm
Claiming we might see a green mars in our lifetime is pretty bold considering Mars has no magnetic field to protect its atmosphere.
@That1GuyMattShortz
September 30, 2026 at 3:22 pm
Some of these questions got me a little worried about the people writing them… either way great video!
@postersinmotion
September 30, 2026 at 3:46 pm
According to Genesis, it would only take a day to terraform Mars…..
@DavidWaite-j7c
September 30, 2026 at 5:13 pm
Mars is a cold planet, it’s core is no longer molten and as such has no internal heat source like we have on Earth. As such terraforming Mars would be near impossible.
@alanh3101
September 30, 2026 at 8:00 pm
What’s with using F. ? At least give us C. Too?
I understand you are catering your American viewers, but what about the rest of the world? I know its easy to convert but be more easy access for everyone.