Standing on Martian Moons Phobos and Deimos

My Twitter: / dreksler_astral
Phobos and Deimos are two very small Martian moons, they also have some very interesting surfaces. So what would standing on these small moons be like? Watch the video to find out.
Intro and outro footage made with Space Engine.
Music: Clouds by Huma-Huma
Dreksler Astral

[@wassupguy1]

You’re reviving my interest in astronomy and space. Thanks, man.

[@NickGold]

wassupguy1 I've been interested

[@wassupguy1]

Nick Gold that’s awesome man. I’ve been away from this subject for a while I just came back into it, learn a new thing everyday. It’s fascinating.

[@seino__]

@@wassupguy1 this is so me lol

[@batatachibbbez]

@NyYankees1985 shut up

[@ouioui2793]

@JC1985 mean

[@azunkor422]

I would be too scared to jump on it

[@learnpianofastonline]

Oh no doubt so would I

[@dekippiesip]

Just did a quick calculation, escape velocity is only about 15 km/h! If you aren't carefull you will actually escape from the moon and orbit Mars independently, now that's a terrifying thought.... And probably less because im not even taking Mars gravitation into this while it certainly will be significant because of the small distance to it's surface. Let's say you jump one meter on earth, in order to do so you need an initial speed of about Sqrt(2*g*h) ~ Sqrt(20) ~ 4.5 m/s. If you jump with that speed on phobos you reach a height of 13 km before falling back. Just imagine that, simply jumping and going higher than the everest, that is just sick :p

[@jayteegamble]

Well, the escape velocity is 41km/hr (11.39m/s). But yeah, a jump would propel you up so high you could easily see the whole of Phobos and its curvature! And the jump would take 12-30 minutes!

[@dxb8086]

_"escape velocity is only about 15 km/h"_ No, it's not. It's 12 m/s on Phobos and 6 m/s on Deimos. I'm not sure where you've got the 15 km/h from, but it's wrong, and therefor your calculations are as well. _"If you aren't carefull you will actually escape from the moon and orbit Mars independently"_ Wrong again. You wouldn't get anywhere close to escaping either moon. Phobos is out of the question impossible. Deimos MIGHT be possible for the strongest of athletes, if they wouldn't wear a spacesuit, which I guess, isn't a good idea on either moon. So again, no. You can't reach the escape velocity on Phobos or Deimos. _"im not even taking Mars gravitation into this while it certainly will be significant because of the small distance to it's surface"_ That wouldn't affect your jump by any means.

[@stonno719]

Phobos actually means ‘Fear’ in Greek. So you’re Feared to stand on ‘Phobos’

[@IQUnder30]

Man I played Doom before, so I know Phobos and Deimos is just a military base filled with demons from hell.

[@QuarrellaDeVil]

I was missing Bobby Prince's music here.

[@aggelosn.6846]

That justifies its name as Phobos in greek means Fear

[@svintlike]

same here *_Y E E T_*

[@TophatMilo]

There seems to be -no- intelligent life here

[@omarsouied999]

IQUnder30 ye

[@oiiverepicbiazotocerveira9660]

1000 times less gravity damn I would still be overweight

[@saikrishnaanem9418]

OIiverEpic Biazoto Cerveira .ol

[@KanishQQuotes]

OIiverEpic Biazoto Cerveira Perhaps you could consult fat acceptance activists

[@craigcorson3036]

Nah. Even I would weigh less than three ounces, and I'm a pretty big guy.

[@carlfazu2731]

Well, to calculate if a person is overweight we use that person's mass and height for the equation. Since your mass stays the same no matter where you are, what you claim is true. If you are overweight on Earth you are also overweight on Deimos.

[@goldenfish5390]

Xd

[@moved4251]

imagine if in the future clickbait videos will now be things like "TRYING TO MAKE IT TO NEPTUNE" or "WE GOT TOO CLOSE TO THE SUN"

[@mindblowndudvedos3682]

dotcom logan pauls children be like"found a dead astronaut in mars (shocked emoji) not clickbait"

[@Wm7forthewin]

+Mindblowndud VEDOS logan paul wouldn’t be able to have children because his children would commit suicide just because of there father.

[@Wm7forthewin]

@Rayz Playz it also works as there -grammar nazi-

[@theperfectpeanutbutterjell7553]

@@Wm7forthewin just like how you can replace where with were.

[@joannataylor3089]

FOUND EYGYPTION ALIENS ON PROXIMA B! (WE WERE NEARLY EATEN!)

[@razorintube]

excellent presentation..... it was almost like a virtual tour to phobos and deimos

[@Baldoxxx4000]

and will be debunked when the first explorers explored these moons

[@coweatsman]

The first explorers will likely be unmanned. Bags of mostly water are too fragile and expensive when unmanned orbiters and landed robo rovers can do everything any human could do, especially with advances in AI.

[@lovelorn88nick]

Just play DooM

[@solar2000]

Your videos always give me existential crises, because they always remind me how small we are in the universe and how so incredibly lucky we are to have our beautiful planet.

[@jmorgan87]

The Earth is an annex of a grander human institution in the galaxy. Think of the Milky Way as a building, Earth is another new workshop from which humanity develops itself.

[@KanishQQuotes]

Bailee Hart Show that to the folks who believe that all humanity should be engaged in is praying 5 times a day and that's just about it

[@jordandennis6794]

All three of y'all sound like pussies

[@KanishQQuotes]

Jordan Dennis Thanks tinkerbell

[@whiterose6186]

@@KanishQQuotes what about those who believe in reincarnation, pray to trees, rats and monkeys, just crazy 🤦‍♀️

[@theq4602]

Phobos=space potato

[@aldefs]

LMAO

[@williamlawson3617]

Lol

[@delta64461]

GLaDOS intensifies

[@Giyga]

Deimos*

[@Jbeats37]

The Q lol

[@CactusVRofficial]

Props to the cameraman for going to space just to record this video

[@kingdave6173]

Love your videos Dreksler Astral...Thank you!

[@Rafaga777]

Interesting as always. Beautiful graphics too. Thanks for the upload!

[@sojourner.]

Your videos are great, they always find a way to balance out the existential crisis I get from every other science topic.

[@lemob182]

This guy's videos are very enjoyable. Always capturing my spacewalking imaginations.

[@phlash649]

I love your channel so much, you can feel the effort put into the videos. Thanks for the existential crisis man!

[@marcelloberry6829]

I’m pretty sure that if you jumped on these you just wouldn’t come down

[@PPAgentOrange]

This video is so well made. I enjoy how you break down everything in your videos from distance to composition. I'm a space nerd at heart, and your channel is awesome.

[@iwantmykidssusan4941]

But imagine someone born and living on Mars for years and then being like “Earthlings went to their moon... I guess I’ll go to mine”

[@Wm7forthewin]

ya

[@LordSalazarsRevenge]

Assuming Deimos hasn't escaped yet, and Phobos hasn't gotten close enough to crash onto the surface or have tidal forces shred it apart into a beautiful set of rings like Saturn

[@Ayahuasca98]

Deimos is my favorite moon in our solar system. It’s interesting due to how small it is.

[@ejosjek52.87]

Smallest moon in the system

[@awesomecool2003]

@@ejosjek52.87 Nope S/2010 J 2 is the smallest discovered I believe. It’s one of jupiter’s moons but there’s probably plenty of smaller ones we haven’t discovered

[@ejosjek52.87]

@@awesomecool2003 yea most likely a smaller one around Neptune since so close to kuiper belt

[@trabbit456able]

Keep up the great work I look forward to your videos every week

[@starflyer3219]

It would be amazing to see these places in reality. I love Mars so much.

[@JcDizon]

The setting in the game called Doom which was created in 1993 takes place on these two moons. But they are portrayed as having Earth-like gravity and both moons are even portrayed as having mountains.

[@jmsessn]

Jc Dizon yeah one had a red atmosphere and the other had grey. the settings were instances of an alternate dimension i guess. i might be wrong though.

[@JcDizon]

Jmsessn Phobos is still in our dimension but it has white Earth-like sky for some reason but Deimos has red sky because it was teleported into hell's dimension. Also, the shape of Deimos doesn't look asteroid-like anymore, it looks more like a floating continent, floating above hell.

[@jmsessn]

Jc Dizon ahh ok thank you for the info 😊

[@erikagehr8273]

Ehh, in Doom you run pretty damn fast even for Earth and it's almost like gliding along the surface, but yeah it is an innacurate representation but it was '93, we didn't know much about the moons back them

[@JcDizon]

Erika Gehr Yeah that's true but if Doom had a more realistic gravity, it could ruin the gameplay. I read somewhere that Doom was originally intended to be set on a fictional planet called Tei Tenga but one of the people who was the original story teller named Tom Hall got fired, they changed it to Phobos and Deimos.

[@zeroboxer_]

Wouldn't you theoratically be able to jump out of its gravitational pull?

[@mosshivenetwork117]

That's what I thought

[@tommyzhao6600]

that would be very dangerous for astronauts

[@maxkho00]

Well, the escape velocity of Phobos is 41km/h, so, to jump out of it, you would have to push yourself against the ground pretty damn hard. That's like jumping up on Earth and flying over the Big Ben (excluding its protruding antenna thingy [I don't know what you call it]). So, no offence to the astronauts, but I doubt they could manage that. As for Deimos, that would be the equivalent of jumping as high as Buckingham Palace. Again, a pretty tough job for the astronauts.

[@hqcart1]

@Max: you forgot that it has no atmosphere, so your calculations are wrong.

[@maxkho00]

Actually, this is not the only place where I am wrong. This is a simplification. I am also wrong because the gravitational pull after the astronauts had jumped would be ever-decreasing. Unfortunately, I can't account for either of the errors, so I just left the calculation as it was. That's exactly why I didn't use specific numbers and used famous buildings for insight. Either way, you don't have to be that pedantic - neither air resistance nor the decreasing gravitational pull changes the fact astronauts wouldn't get close to escaping either moon. You have got a fair point, though.

[@Darkshot_47]

Another great one! Always love these "Standing on xxx" videos! Keep it up :)

[@mysticalblitz2611]

I love space and learning about it keep doing what your doing coz I love it

[@troll8963]

Mystical BlitZ i love space too!

[@richalathwal6844]

Waao .. Awesome video 🤗.. you rock Dreksler 👍

[@unkownfruit010]

Wow, you make the space topic even more interesting than any other youtuber could ever do, I love the fact that you cover all kinds of planets, moons, astroids, galaxies etc...your videos make me feel so much more excited to know what lies in the universe, also could you make a video about Andromeda and it's features? also what if Earth was in a solar system of the Andromeda galaxy? (Just suggestions) anyways you rock! ('∀`) ✌

[@jimmytalbot8203]

Excellent presentation and thank God you didn't mention the "monolith" the UFO nuts go on about. Subbed.

[@jordanrodriguez5191]

Honestly one of your best vids

[@LiterallyRyan_Gosling]

Standing on Deimos: you're on the shores of hell

[@murph6547]

keep your good work man,you are amazing,i love universe,

[@anilcr8791]

Great video, very interesting, you should have 1M subscribers for sure...!

[@divydubey17]

Please don't stop uploading videos, man. This much quality content will surely get you a million subscribers soon.

[@BensLab]

Another good video. You put this one together well. Phobos is very interesting..A mission being planned by JAXA; the Japanese space agency will explore Phobos to determine if it is a captured asteroid or formed from Mars itself. The answers could lead to insights about the early solar system.

[@NostalgiaCatholic]

On Phobos, if you jumped straight up, you would eventually return to it, perhaps after some many hours of floating above it. On Deimos you could literally jump past its escape velocity if not careful and never return to it at all.

[@dxb8086]

_" On Deimos you could literally jump past its escape velocity if not careful and never return to it at all."_ No. The escape velocity on Phobos is 12 m/s and 6 m/s on Deimos. You wouldn't get anywhere close to escaping either moon. Phobos is out of the question impossible. High jumpers can leave the ground at 4.2 meters per second with a run up - on Earth. High Jump Run-Up - nearly enough. And you might think you could leave the ground more quickly in low gravity. But you wouldn't get much of a run up in the low Deimos gravity. Especially in a spacesuit. You'd leave the ground first. And a standing jump would much more harder. You can't reach the escape velocity on Phobos or Deimos and therefor you would fall back eventually. Even though it would be a very high and long jump. Assuming that the surface would be firm enough to allow such a jump, the height attainable would be 1721 times higher than on Earth, (so let's say a couple km, max.) much smaller than the satellite's diameter of course, so obviously well short of the escape velocity. However, let's hope the astronaut brought some lunch with him, because it will take several days to come back on the ground. A scary thing to imagine, if you ask me.

[@jonahjerryson4913]

​@@dxb8086More important than lunch would be a jetpack suit, as that would allow him to go back down, i would be too scared to see Mars behind me and would be terrified that it would pull me to it.

[@manw3bttcks]

Didn't mention one of the most interesting facts about Phobos, it's the only moon in the solar system that orbits its planet with a period shorter than the planet's day. Phobos would rise in the west and set in the east. This also means that Phobos's orbit shrinks by 2 meters ever century. It's predicted to break up into a ring due to tidal forces in about 40 to 50 million years with some rubble falling onto the planet

[@mikefm4]

Amazing video. Edited beautifully and the narration is great. Thanks for making a video about seldom talked about moons

[@EMERTHERofficial]

Thank you for sharing this information!

[@carmcam1]

4:14 - 4:29 made me dizzy but i cannot look away because it looks so amazing. It feels like i'm there rotating around Mars.

[@DarthCookieKS]

Thank you for the beautiful gráfic it make me feel like I'm on the planet and moon :)

[@aleksandrapetrovic774]

Super su ti klipovi! Obozavam teme o svemiru I uvek sam se pitala kako bi bilo istrazivati nove planete I satelite.... samo napred!

[@MFahrulRozi]

I'm loving these animations

[@alphashaitan65]

There are moon bases are already colonized, but have been overrun with insane shotgun wielding zombies, imps, cacodaemons, hell knights, and plenty of pain elementals.

[@denifnaf5874]

Hellknights appear in doom 2 I forgive you for confusing them with the barons of hell They are simular...

[@mosshivenetwork117]

Standing on Mars' 2 moons would be difficult considering that they're just asteroids.

[@ml3487]

And we haven't landed technology on Asteroids before?

[@GreenSteedaGT]

Malcolm Abram Awww, did you get triggered? Fuck off.

[@annoyed707]

You would almost be holding on more than standing. Don't flex your toes unless you want to hang there for a long time.

[@annoyed707]

You would seem to be moving backward on Phobos, would it not? Mars takes longer to rotate once than Phobos takes to revolve around Mars.

[@sorentheg]

AsianGum well,just a probe.

[@marshartdegen]

So small, even the big spaceship get closer with them, can make they're orbit changes -_- or use gravity of spaceship to pull phobos up. Lol I also wanna make a strong gravity to make moon stop getting away from earth. Lol

[@AnnaMaria-ir4zy]

Apa sih maksud anda

[@familiarr_Strangerr]

hey interesting video once again!

[@trijizvy]

When i was eleven years old, i wanted to be an astronaut and look at Mars or least at on the Moon. This dream will never come true for me. But i could see your more than lovely videos about planets and universe and this wonderful dream come true for me! Warmly thank you for a lovely moments with your videos about universe, planets and moons. I am very glad watching your videos and i really fell in love with your videos. THANK YOU VERY MUCH!

[@HapNStance]

Nicely done.

[@Turrican60]

Very inspiring videos indeed. Your commentary is not only informative, but your tone of voice and choice of words makes us feel as if we're being accompanied by a friend. Keep up the good work. One suggestion: What would we see hitching a ride on Halley's Comet?

[@thatkeepskillingyouintitan64]

We have 2 moons now Luna and that asteroid earth captured

[@Caesar.X]

What is its name?

[@xavierlauzac5922]

We only have one moon.

[@Caesar.X]

@@xavierlauzac5922 i have checked for this and there is an asteroid that orbits the sun in an orbit close to earth, it looks like if its orbiting the earth due to its closeness to earth its name is cruithne btw

[@zaltmanbleroze]

@@Caesar.X oh i thought its name was covfefe.

[@Wm7forthewin]

technically we have a lot of moons, but they all escape the earths orbit after a few years. So we still have 1 moon that’s almost permanent.

[@sherlockholmes6956]

Imagine if humans like people were living there for millions of years and then you show up from earth, you would be litteraly a superman. They might be too weak from the lack of gravity but you will jump so high that to them you will be flying and you will also be the strongest and the fastest person on that moon.

[@minzsocute]

Extreme Demon Phobos :))

[@goktug5722]

Deimos too xD it got rated

[@dr4876]

Found the GD Player

[@theblanktheorist282]

The little prince was on Phobos this whole time

[@stefantheconqueror8710]

If you jump on it would you float away?

[@natesturm448]

Technically, yes but no at the same time. It's the same question to "Bear" in the movie "Armageddon". - "If I were to kick you in the balls, and you don't know how to work them . . . what happens to you?" [Speaking of downward thruster use on spacesuits to help keep the astronauts on the ground] - "I'd float away"? The movie is speaking of an asteroid but that's a fairly close representation of Mars' moons. Yeah it's just a movie, but that one scene is fairly scientifically correct. Now as for problems going against you? Without an effective counter force such as higher weights your legs just couldn't generate full power to launch yourself, and on top of that jumping in a spacesuit suited to such extreme space travel probably wouldn't be easy at all. No spacesuit at all? Probably could do it but you'll be grasped by Mars' gravity the moment you leave one of the moons' gravity. So technically you couldn't "float away" as you'll more or less be falling either back onto the moon or straight to Mars.

[@Moonie95]

Nate Sturm Thank you for your answer. Very interesting

[@evilkidm93b]

Very nice video, it was really fun. I felt like I was actually visiting the moons, thanks!

[@pomeranianproductions647]

What if ur standing on Olympus mons

[@oceanix91]

You would be standing on Olympus Mons.

[@budmeister]

@@eyecomeinpeace2707 Actually no, since the volcano is so wide, the bottom of it would be beyond the horizon.

[@eyecomeinpeace2707]

@@budmeister ...thanx : )

[@oceanix91]

0:00 to 0:12 When you find out tommorow is not the last day of school

[@JennyOwnzable]

Lol

[@RonyTomo420]

There’s an obelisk on the moon of mars and it’s sending a transmission

[@recarion2347]

Elaborate

[@narendra8624]

These moons are might be going to create atmosphere on Mars for life in few million years..

[@FreeBird-ws2ye]

It'd like Doom

[@Wm7forthewin]

not at all

[@averageyoutubeviewer1790]

Edgy Loser wrong, I’ve been there multiple times and it’s just like doom

[@C1ark241-z6y]

everyone: Great video! me: JUMP! JUMP! JUMP!

[@jtyfghfgdcfhdf]

Don't jump on Phobos...

[@stevenpilling3773]

Those moonlets will be important someday.

[@jorgenitales412]

what would happen if those 2 moons drifted torwards mars and hit the planet?.

[@EvilSnips]

Yessss

[@azunkor422]

Jorge Nitales Phobos will. The explosion would be even greater than the meteorite that wiped out the dinosaurs

[@monterrang1]

welp phobos IS drifting to mars , and scentist think in 30 millions year it might become a very thin ring due to roche effect on phobos but that's it

[@hqcart1]

then life will comeback again to mars, since all under surface water will evaporate creating clouds!

[@sorentheg]

It technically depends on what rate they are drifting towards mars.

[@thaulos4915]

im surprised no mention of the famous Phobos Monolith

[@Persac7]

Keep up the good work

[@scottcupp8129]

Great video. VERY interesting and thought captivating. Thank you!!

[@mexicanakinskywalker6762]

Tick

[@OmarFaruqueBD]

That would be a great flying experience with free of cost!

[@Entropicalli]

I love this mans accent

[@brwchm2023]

In Greek Phobos = which means "fear". Deimos = which means "terror".

[@disrespecc9678]

daywalker Deimos means Panic

[@wesleysceilingfanjoint5255]

Did you know the Earth actually has two moons the second one is ho-2016 I do not want any means things that people say to me

[@wesleysceilingfanjoint5255]

Good point

[@bernardpolicarpio651]

Cant find any flat earthers here. Pls help

[@vibin4092]

That object is so small (Like 40 meters diameter I think) that if it were removed it wouldn't do much to the Earth' s orbit

[@surfn07]

I like that you found Dracula to narrate this video.

[@MrPeterquinn]

Trump Don’t Surf hahaha. Yes 😂

[@Korgon2013]

Watch out for the Imps….

[@denifnaf5874]

And the pinkies And theres some anomally on phobos... probably not a problem... probably...

[@sillydude674]

if you somehow did get to phobos make sure to NOT jump, as gravity is so weak that you wont come back to the ground in god knows how long

[@wtfisgoingon337]

Waste the time going there. Nevada's closer

[@xromies]

Astronaut 1: do you like jumping? Astronaut 2: yes but not this place...

[@tony.2902]

The music is soooo sad.

[@andrewpolitano]

Supreme Biscuit eternally repeating sadness that’s honestly a bit too loud

[@zonzeven]

This video would be better without the 'music'.

[@oceanix91]

The music is what you hear when you find out tomorrow is not the last day of school

[@rr7firefly]

and relentless...

[@Skjeggspir]

@@andrewpolitanowhat is the music piece called?

[@Jordysegs89]

If you jumped too high, you’d escape Phobos gravity

[@denifnaf5874]

The reason doomguy doenst jump!

[@PotatoMan007]

Notice me Astropai

[@YohaneTheNesoberi]

I rewatch these videos all the time. I wish you would upload everyday. Please keep the astrology vids coming. Props from America ✌🏻

[@jaisys9978]

Geometry Dash

[@butter_dog6182]

Phobos and Deimos: exist Me: *a geometry dash player who knows of two extremely hard levels named after those*

[@jonathanharris2090]

You would be standing on a dead rock looking down at a big dead rock mars.

[@livinginvancouverbc2247]

Excellent video. I was thinking exactly these thoughts while I was recently watching 'The Martian' and Phobos could be seen in the sky.

[@freezingdefender5540]

Does these even effect mars

[@billypeas9516]

The tidal forces are basically zero but Phobos is drifting towards Mars so it may hit it or turn into a ring in 30 million years. If Phobos does hit Mars, then it would have an impact greater than the force that killed the dinosaurs. Deimos is slowly drifting away from Mars, so one day Mars won't have any moons.

[@KuDastardly]

Either Deimos is gonna be overrun by hordes of demons from Hell, or aliens from a distant vast empire because of a certain rampant A.I.

[@Ribbean]

*NOR AMERICA*

[@davidhall2569]

Giant boulders in the skies of outer space ... without the sunlight the moon would look like a dead floating rock to us, I've only seen it once like that a few years ago one early morning it looked scary

[@kcirrednosrednad3596]

Yep. I like your commentaries on space. Great job done.

[@C2_boi]

I would be absolutely terrified if I was on one of Mars’s moons like what if I accidentally jump to hard and fly off for the rest of time?

[@guestive]

Random: "Foubohs" is getting ripped apart by Mars. It's gonna enter its Roche Limit sooner or later because it's orbiting faster than Mars's spin.

[@seanc193]

I would pick up the rocks on Phobos and throw them at Mars, that way I can say I hurled meteorites at Mars.

[@smflatt]

I like the way these presentations are put together. The imperial and metric systems are both displayed in all the measurements. I enjoy not having to convert in my head! Very interesting videos! (I'm a new subscriber.)

[@smflatt]

@@oilersridersbluejaysIf you will read my statement again you'll see that I plainly stated that I don't have to do the conversion. I’m quite capable of doing so. I simply enjoy seeing both systems being posted at the same time.

[@JimmytheGenius]

for you math geniuses out there, what's 1721 times less then 150lbs.

[@lincmcbburger6542]

0.0871586287

[@lindsey7544]

@@lincmcbburger6542 ty

[@Elara_____]

I forgot how wonderful these videos of yours were. I wish I could do something, like translating them into my native language, or at least working on the subtitles, as many French people have a love-hate relationship with the English language.

[@Mucho-Taco]

If I was to take a trip there. I would definitely visit the Phobos monolith

[@vegassims7]

You forgot to mention that BOTH moons are tidally locked to Mars so therefor they both always face mars in the same direction, just our Moon around the Earth.

[@r.a.6459]

I also heard that one of the moons will eventually crash on Mars, another will get further away.

[@luciusirving5926]

With future thrusters, they'll stay in orbit long enough.

[@jennifermichellemasterson4565]

hey, good video. you did well on this one, so I am going to watch some other of your videos! it would be greatt o send a manned mission to Mars and have them come back with some samples for folks to see and handle.

[@mreggs3731]

it is sad that Phobos is getting closer to Mars