What They Didn't Teach You in School About Mars | Our Solar System's Planets 4K

[@astrumspace]

Hi everyone, Alex here, welcome to the remaster of the video that made this channel possible! It was my first ever video to take off. I've come a long way since then, and wanted to revisit this amazing planet with updated visuals and audio. I just wanted to say thank you to everyone who joined Patreon. Your membership is what allows me to keep Astrum what it is, and not what the algorithm looks for. bit.ly/4anEb5u

[@Abcdefghlll708]

3days how?

[@phloxie]

Cool video thanks ♥ it but why does mars have so much xenon-129? always wondered about that :o

[@alexneff]

Hi Alex, Alex here love your work thank you you have put me to sleep many nights and kept me up many more

[@HypnoPol1499]

Love it and love your voice. So helpful with anxiety. Thank you.

[@JHorkan]

I watched that again a couple of nights ago. Must have watched it dozens of times now.

[@MadHax-wt5tl]

Many years ago a friend of mine got himself a telescope. When he first trained it on Mars, the planet was experiencing a global sand storm. He described it as an orange fuzz ball. We both got better views later, and could make out features like the polar ice cap. I'm totally glad I got that opportunity.

[@samr.england613]

The Martian regolith is not as big as 'sand', it is a very fine dust, like Lunar dust, finer than the finest bread flour. This is why the incredibly thin Martian air can blow the utterly toxic dust all over the planet in Mars' renowned global dust storms. Mars' air is SO thin, that a 60 mph wind wouldn't be able to blow an oak leaf. The reason it can blow the regolith all over the planet is because that regolith is as fine as cigarette smoke when disturbed.

[@myweirdsecondchannelwithap9070]

pun intended?

[@Ericaodd]

Did you have to re-upload this because the preview bots thought Olympus Mons was a nipple?

[@dew12u]

Only reason I clicked on it.

[@cosmolosys]

@@dew12u same xD it looks like a nipple

[@Codysdab]

I came for the boobies. I thought it was an ornithology video 😉

[@alexneff]

Hahahah likely

[@tjallingdalheuvel126]

I have a theory on how the Milkyway came into existence now.

[@JusNoBS420]

Thank you Astrum team!! The way you communicate astronomy is second to none! And I'm sure many enjoy the podcast but wish it were longer lol. I personally use it while I drift off to sleep. And the soft music you play at the end of the cast is perfect 👍

[@astrumspace]

We are working on adjusting the podcast to make them longer!

[@maxboya]

@@astrumspacehow dense do you have to be to not even mention the pyramids on mars or the face on mars?

[@jeffreylebowski3216]

​@@maxboyaDude...

[@maxboya]

@@jeffreylebowski3216 yes?

[@Beryllahawk]

Mars will always be near and dear to me. The landing of the Pathfinder/Sojourner mission was a big part of my first date with my now-husband, and sometimes I go back and look at the little collage I made - this was the 90s, it must have taken me hours to find and print out two dozen different images of the rover and of Mars. Good times! I'll always be fascinated by this planet and your videos in particular have been a joy for me. Whatever you choose to remaster next, I'm here for it!

[@cristinelcostachescu9585]

The only thing I regret while watching your videos is not having a 70" 8K TV, and a surround audio system. Man, what an experience your videos would be.... Great work, as always, Astrum!

[@Car_guy31]

I took your advise and got off the iPad, turned on the TV (55" qhd+, 4k, cuz that's all I have) and got my Sony XM1000 headphones on (late at night for surround speakers). Made a HUGE difference to the experience..❤ Thanks.

[@Brando56894]

I have a 65" 4K TV and the pictures did look quite stunning!

[@d-boyzinfinity1614]

Love the remasters for this series. We know so much more than we did back then and it gives you a chance to make a video of higher quality. I’m pretty new to this channel but it’s become one of my favorites and I’ve gone back and watched your older videos, especially about stars. I find stars and light to be very fascinating. It’s amazing too the images we can get now from Hubble, modern ground telescopes, rovers, and probes. We can see the wonders from space from our own little neighborhood here around the sun all the back to the distant past of the universe. There’s so much beauty on this planet that it’s a marvel to see the beautiful features of places we most likely won’t get the opportunity to go to. Keep up the good work

[@jennyanydots2389]

He wrote this while he was serving time for public dawg beetings.

[@drgonzo123]

Whenever I think of how Earth looks to other planets, I think of Carl Sagan’s “pale blue dot” quote, and everything in my life feels so small and meaningless. Instead of feeling depressed or horrified, it calms me, and helps me distress a little just knowing how insignificant we are in the grand scheme of the universe.

[@Ciacien-ke7ot]

i think you meant "destress" lol the only reason i bring it up is because "distress" means literally the opposite of what you're trying to convey 😂

[@ioanwib]

The grand scale of the universe makes me reflect back on what we call life in utter amazement, it really is a miracle. It makes me want to work for a better future to uphold this mantle of life. And maybe one day we'll be lucky enough to see it touch the stars.

[@robertnewhart3547]

Fact. Lol

[@aaronmcconkey1062]

​@@ioanwibim sorry to rip off your peaky blinders but, no religion is real and true..

[@samr.england613]

Then you should watch Sagan's, "Cosmos". Because in it, he explains why the Universe, and everything in it, including ourselves, matters to, 'we humans', it matters to, "Us"!

[@StretfordEndGaz]

im 52 and i dont think i have 20 years left in me, i do hope in my lifetime i see human on mars seeing how space exploration has moved along in my life, seeing mankind land on mars would be the pinnacle

[@badram0204]

I'm in the same boat, im 57 , where has the time gone. If anyone can do it it's ELON MUSK

[@heinrichagrippa5681]

Damn, not making it to 72? That's kind of grim. Or at least it seems that way to me, as my dad actually _is_ 72, is more physically in shape than I am despite being a little over twice my age, and it doesn't seem like his health is going to fail any time soon. Hell, his _mom_ is still alive and will be turning *103* in November. So I hope you were just being pessimistic and that outlook is not due to an actual medical condition.

[@StretfordEndGaz]

@@heinrichagrippa5681 ye im just realist, im not in best of condition and in my family men dont make it past 65 - and when you think thats 4 brothers, 2 grandparents and parent only 1 brother left and he is 62

[@sarasmr4278]

Try to take the best care of yourself that you can. Environment does impact what genes get expressed. And that goes both ways!

[@capnmnemo]

@badram0204 musk is an idiot

[@javanpoly4901]

Thanks!

[@CasuallyIncredible]

11:48 That particular Dust Devil was about the same height as an average tornado here on Earth which they can get over a mile tall or 1.609344 Kilometers.

[@MadHax-wt5tl]

And I'd rather get hit by the Martian tornado, as the low air pressure would make it no stronger than a slight breeze. But I'm guessing we all knew that already..

[@CasuallyIncredible]

Yeah. & I think due to the low air pressure I think the dust devils want really to pick up stuff beside small dust particles.

[@Brando56894]

I was gonna say "That looks like your standard Earth tornado" haha

[@mayawowzers1305]

Great remaster! My favourite part of the video is still: "Let me show you an example." *loads up beam ng*

[@psmirage8584]

1:48 I'm a bit confused here; 1 year, 320 days, and 80.2 hours? Why not just say 1 year, 323 days, 8.2 hours?

[@shanomac69]

I was thinking the same damned thing. I guess he didn't have enough coffee yet when adding in the commentary, LOL 😂😂😂

[@robinson-foundry]

Yes!! I've been waiting for this for years!

[@MasterMayhem78]

That thumbnail 😂

[@JusNoBS420]

Olympias Nips perhaps?!?

[@CrooperOrg]

Clickbait done well... For science.

[@rolanddechaine3564]

I came for the booby thumbnail, I left with knowledge about Mars.

[@Flesh_Wizard]

Mars Tiddy

[@RealOny]

What

[@liisabjork76]

Just beautiful and fascinating. I love everything about space. So cool that i was in that photo!

[@Hotchpotchsoup]

Mars' huge mountain looks like a nipple 👀 and it's 100% why I'm here

[@Abcdefghlll708]

Notty boy 😂

[@DefinitelyNotaCyberCat]

Dude's down so bad

[@CrooperOrg]

Everything reminds me of her...

[@bimblinghill]

Everything I see reminds me of her

[@Spaatz77]

Oh, I new this one was coming. Could be a large blackhead, but I'll go with nipple.

[@jaimesalgadoakajaime_the_d7537]

This is great content to learn from and understand astronomy 😀

[@Mightymattification]

Amazing video like always, Astrum! i'd LOVE to see a revisited video of Neptune, my favourite planet! keep up the great work!

[@rtrThanos]

Most amazing imagery of Mars I’ve seen. I could have found it if I went looking for it, but I got it from here without lifting a finger.

[@NorthernChev]

If you don't have 4K turned on DO IT NOW! There are some absolutely STUNNING images you have to see in high-res.

[@tjallingdalheuvel126]

Too late. My eyes do not registrate life in 4k anymore.

[@jennyanydots2389]

Like when he's beeting his dawg during the last 5 mintues? He really lays into that dawg, closed fist punches right to that dawg mouth. He kept screaming at him, calling him "shifty" and "smarmy" and "judgmental". I don't think that dawg is gonna make it through this one, in 4K you can really see it in his dawg eyes. He's prayin' his little dawgy prayers for tha sweet release of death.

[@spacemissing]

Uhhh... that makes my laptop stop loading the video at all. Literally, IT WILL NOT LOAD ONE PIXEL.

[@blakespower]

I cant when ever I try all I get is a spinning circle

[@arm1n]

That's if you actually have a monitor that can do 4k. If you choose 4k on a 1080p monitor it'll be a super tiny bit better but nowhere near actual 4k quality.

[@mikezizis3725]

Thank you so much Alex! Your presentations are always wonderful and your enthusiasm is infectious. I need to mention a fact that is never covered in the presentations of Mars in anyone's video but is truly astonishing. There is so much water on Mars that if the surface water was melted including the hidden glaciers it would comprise an ocean of about hundred and 15 feet deep over the entire planet. Could you please and a feature video give this theme sometime? From Wikipedia:A bundant water ice is also present beneath the permanent carbon dioxide ice cap at the Martian south pole. More than 5 million km3 of ice have been detected at or near the surface of Mars, enough to cover the whole planet to a depth of 35 meters (115 ft).[13] Even more ice might be locked away in the deep subsurface.

[@truerthanyouknow9456]

I did not know that Mars had a tilt... and therefore seasons. Thank you for sharing this.

[@Penfold101]

It does have a tit apparently.

[@bimblinghill]

It does, but also, unlike Earth, the eccentricity of its orbit also has a big effect. These add together to make the southern hemisphere have much more extreme seasons.

[@jennyanydots2389]

Even dawgs and cats and squirrels know this brugh

[@truerthanyouknow9456]

@@jennyanydots2389 😆

[@David-gh6vp]

@@jennyanydots2389 LOL I had to laugh at that one!

[@d4rk0v3]

My favorite fact about Mars is the crater that's so deep the atmospheric pressure gets high enough during certain times of year for liquid water to be stable at the bottom. Hellas Planitia I think is what it's called.

[@kindnuguz]

Does anyone else get a feeling us humans once occupied Mars but because we destroyed the planet we moved to Earth? I don't know but Mars gives me a vibe of what Earth could look like if we are not careful

[@paulspaws1521]

Thanks for the update, new imagery is brilliant.

[@JuliusBriggs]

real ones remember the original upload

[@abstraqtphilosophy7357]

That doesn't make you a real one. Stop trying to distinguish yourself thinking you are sth special, when you ain't.

[@TheAmazingYeti]

Real ones also don't get so easily offended.

[@JuliusBriggs]

@@abstraqtphilosophy7357 lmao it's not that serious touch some grass buddy, your chronically online behaviour is showing

[@Zalost2]

​@@abstraqtphilosophy7357damn, that really hurt your feelings, huh? It's not that deep, go outside, find a hobby. Getting mad at KZbin comments really shows unhealthy behavior.

[@GardenOfUna]

im glad i dont and couldnt care less goodbye lmao

[@WannabeMarsanach]

Nice to see a glacial form get a spotlight, even if only an image. It was videos like yours that got me to seriously consider planetary sciences as a direction I may want to go in, and now I study Mars full time! Great to see this re-make showing off the best planet in our solar system.

[@apuji7555]

That's really cool! What do you study?

[@WannabeMarsanach]

@@apuji7555 I study the glaciology and glacial features on the Martian surface with regards to surface processes and climate interactions, and what looks to be an example of one appears in the video ~ 00:44

[@sammyfox9109]

"arachnophobes dont worry" puts more spiders on the screen anyway 😭

[@jenesisjones6706]

One of your best videos...in my humble opinion.

[@FPSWordle]

Well that thumbnail was chosen for a reason. :)

[@aliasaila8818]

I love your channel, I love the videos, the information and your voice the words of presentation. It is so fascinating. Every video ist a work of art in science.

[@Birne_TM]

Great video as always! But can you please do metric units aswell going forward? a video conversion would be nice, because which European in their right mind does know what 38000 or 120000 ft is in meters or km... (i know now, because i looked it up, but also i now am writing this essay to 'complain' about the units you use.) really just a feature request comment if nothing else.

[@kamilpotato3764]

How about ditching imperial fully. Scientific video with feet and other idiotic measurements?

[@321CatboxWA]

Hahahaha metric😂

[@kamilpotato3764]

@@321CatboxWA Only right and logical way.

[@nathon1942]

Don't forget that Mars changes its axis every so often, drastically. It sometimes flips to a sideways axis like Uranus. This process is infact what directly led to the rapid stripping of its atmosphere.

[@stefalim]

The nipple of the gods!

[@The_Modeling_Underdog]

Thanks for remastering these old videos, Alex. What a ride it's been, innit? Cheers to you and your team.

[@testerpt5]

i am a simple man, I see this thumbnail I press like

[@AnudeepManne]

Thanks for showing us the solar eclipses on Mars in the end. I loved it. Almost brought me to tears! Remaster Jupiter, please. Thanks!

[@MemeAnt]

There’s an unlisted version on his channel that appears to be slightly longer lmao

[@jennyanydots2389]

Alex beets his dawgs for like five minutes at the end and didn't realize he the camera was still on until after he uploaded.

[@MemeAnt]

@@jennyanydots2389 what thing are you referencing here

[@jennyanydots2389]

@@MemeAnt The dawg beeting. Alex forgets to cut them out sometimes. He has this shifty little yorkshire terrier always ruining his takes and sometimes Alex goes completely bonkers with rage and really lays into that dawg, closed fist punches and soccer style kicks. He's gone through at least 8 dawgs at this point. After this particular beeting I think he'll be on number 9 come this time tomorrow. He really taught that dawg a lesson this time. Might be that judgmental smarmy little muts last lesson.

[@socialistrecyclebin]

@@jennyanydots2389 what

[@SangheiliSpecOp]

@@socialistrecyclebin they forgot to take their schizophrenia meds

[@mentorofarisia371]

I'd like you to compare the challenges of building a community on Mars compared to a community on our Moon - excluding the time and expense of travel, but including the dangers to the crew in Earth-Mars trips, such as radiation and long-term weightlessness or spin gravity.

[@LoneTiger]

Fun fact: It's easier to visit Mars than to visit Venus but, it's easier to terraform Venus than to terraform Mars.

[@Sybil_Detard]

My favorite "fact" about Mars is old science fiction stories, written before we knew what we now know. Those stories are so fun and fantastic to read.

[@jameshall1300]

Thw Princess of Mars series is such a good read, despite how outlandish so much of it seems now.

[@OzCrusader]

Is this a repost? I’ve seen this before.

[@jadebrownofficial]

It must be because I just watched this video last week.

[@claudeJUNIOR]

@@jadebrownofficial This is the Director's cut with 5 miliseconds more.

[@Pendergasted]

Isn’t this explained in the very beginning of the video? 😂

[@claudeJUNIOR]

@@Pendergasted This video is a repost of a repost. That's why people...

[@djvapid]

Mars looks stunningly like taking the scenic route on a drive through Arizona.

[@aguythatworkstoomuch4624]

The thumbnail makes it look like Mars has a giant cyst. A cut in the middle to separate the skin and expose the sack. Squeeze out some of the contents to relieve the pressure. Then carve around the sides to listen the sack wall . Keep going until you reach the bottom. Pull the wall sack out and reveal the bottom that is attached to connective tissue. Use a sharp blade to work the bottom from the natural tissue. Flush with saline and stitch up. There will be a temporary divot under the skin but that will fill in with healthy tissue in a couple months.mars’ system needs to be popped and maybe life will spew out of it in the form of bacteria😊

[@thejoydecision724]

I have rewatched some of my favourite from the original series so a remaster is wonderful

[@everettwalker9141]

How many years and billions of dollars will we waste to admit there is no life there and never has been .

[@granatengeorg]

Plenty, but if it gets humans to eventually set foot on it, then there will finally be life on it afterall, which would be pretty cool as well.

[@dmhendricks]

We love you and your voice is so pleasant to listen to. Also, *thank you* for not injecting any politics into your videos.

[@PushyPawn]

Why does Astrum talk so slowly? I watch at x2.0 and it sounds just about normal.

[@_rlb]

International audience. I'm glad he talks slowly so I can understand it :) A lot of KZbinrs talk too fast and with terrible accents. Impossible to follow for me as a non-native English speaker.

[@PushyPawn]

@@_rlb I guess that makes sense. I just feel (slightly) bad for his "viewer retention" statistics. If I watch the whole video at x2.0 he will only receive 50% viewer watch time from me.

[@anthonychihuahua]

You'll be eating your tears if they ever went to cg/ai voicing 😐

[@FoursWithin]

​@@PushyPawn Is that a fact or just an assumption that a channel receives a smaller percentage if viewers watch at double speed? After all , sadly the advertisements always remain at normal speed , even though I wish they could also move twice as quick.

[@tonyjohnson8929]

My favorite fact, which I just learned, thanks Alex, is the reason Mars has that color. It also got my imagination zooming thinking about the megastructures that had to have been there to create that much rust. The Fe was mined from that used to be Grand Canyon size, crevasse Valles Marineris. That's where all the oxygen hiding. When we go back and start building again, more iron we use, easier it'll be to breathe. Now that's one helluvan incentive right there. Lol

[@tylerdurden3722]

This fact is even better. Some rocks/sand have iron in it's chemical composition. And when you expose those rocks to oxygen the iron "rusts" and the rocks/sand turn red...just like here on earth (iron is the most abundant metal in the crust). If you've ever seen a place with reddish sand and/or rocks...those rusted and turned red, just like on Mars. No megastructures needed...you just need Iron to be the most abundant metal in the crust...and on Mars, it's very abundant.

[@Please_allow_me]

We get 4k photos of mars but when we need to identify a criminal we get 1 mega pixel

[@chrishill7797]

😂 the cops are probably looking for blocky Minecraft criminals

[@massimookissed1023]

The CCTV cameras might well be capturing images at higher resolution, but they get downsampled and compressed when they're stored on the security system's hard drive.

[@damianpokarier2965]

My favourite Mars fact: we're yet to visit in person. We live in very exciting days

[@Derpy1969]

The best possible place on mars is worse than trying to live on the worst possible place on earth. Let’s stick to living here and just send billionaires to Mars.

[@chriskelly6574]

I love that picture of Earth and the Moon. Like you said everyone, ever is in it. Also, everywhere we have walked.

[@mariz2361]

Why is it you are so good at explaining/teaching the things I think kids should be learning at school...???!!! But... Thank you for, well, being you!!!

[@rossdavis2294]

Cool your can see the moon orbiting the Earth from Mars!

[@jonnyhifi]

Tremendous video Alex. - another triumph. I need to see what’s happening with my notifications as I haven’t seen a video of yours for ages. Flippin algorithm ! Your videos I view as part of my staple KZbin diet… so why haven’t I been seeing them. Grrr !

[@anttirl]

Best astronomy videos on KZbin.

[@ParrishRobbins]

Thanks Alex. Happy to see all your video's on solar system bodies remastered.

[@Ryk254]

I vividly remember your 1st video - this follow up is highly appreciated

[@rubenp8320]

I think we like Mars only for the fact that it's the closest terrestrial planet that wont immediately kill us upon landing. I personally love Venus. I love your videos, keep up the good work! much love

[@eggstu]

Breath taking sights. Something internally still yerns to go there and experience it. However, this is as close as we can get and I feel fortunate to have lived in a time where we can get this level of access to another world.

[@robertfindley921]

I love hiking in mountains and canyons. The beauty is awe inspiring. My dream would be to hike on Mars, if somehow I could survive without a spacesuit. The geology looks amazing.

[@tylerdurden3722]

It would be 3 times easier to climb mountains, since your weight will be about 1/3rd. And you could carry 3 times more mass in a backpack and the backpack's weight would feel the same. You can boil water just by opening a bottle...and you can drink boiling water without burning. Or operate a steam engine without a fire...you just need liquid water, voila you can drive steam powered turbines, engines, etc.

[@boyinapeatbog]

I have never seen that Earth and Moon photos before. Delightful

[@More-Space-In-Ear]

As always, a pleasure to watch and listen too. Thanks Alex

[@bigsarge2085]

Fascinating! Is there enough info for a doc on Neptune's moon, Triton?

[@FactStories76]

Yes!! I've been waiting for this for years!

[@curious-r8t]

A deep dive into the memories of Mars. We all have memories. A beginning and an end. So will Mars. And that alone proves our existence. I just was browsing through this channel while partially listening to the world as we know it might not exist or something from this channel and just wanted to leave this comment.

[@Arcturuseyes]

I love the spiral pattern, it is the pattern that is constantly repeated in the Milky Way

[@igavinwood]

Another wonderful and interesting vid. You make it easy for people with no knowledge to understand the bigger picture. If I could choose a remastered vid it would be the moons of the two gas giants, Jupiter and Saturn. These along with Mars have been touted as the most likely place for human settlement.

[@diehardcynic]

how humbling space is. if only everyone were to share this perspective.

[@lusonglubo]

i like how you explained the things etc., videography si astounding. it can be use in schools

[@adrianooliveira9144]

Alex! The best youtuber on Earth!

[@anjkovo2138]

Thanks Alex. Always a Joy watching your interesting presentations👍👍

[@Bulletproof_Trump]

This video is great if you know nothing about Mars. A great starting point for fresh minds

[@FromNothing]

9:02. You said "avalanche" but I don't see any snow or ice. Isn't that more of a landslide?

[@El-up1ri]

You have the most beautiful narrating voice on KZbin.

[@granite6196]

4:33 that gravity representation was great!!

[@mitchelldomanski549]

Charon and Pluto. You know what all your videos are good. Even thoe Charon and Pluto are now classed as a celestrial body? They are still part of our solar system. I wouldn't mind an update or refresher, including whats around them. I enjoy all your videos with well-educated theories and facts.

[@prismaticbeetle3194]

kinda looks ultra peaceful ..no garbage no deformations just pure creation undisturbed

[@IamRagnar_LK420]

I absolutely love your videos .

[@CalatheaPlant]

Love the smile I hear in your voice!

[@stuarttunstead6616]

Super interesting as always, Alex. Thanks.

[@jugomebu]

Noice one team, lovely upload and um, arousing thumbnail

[@adamkahn8645]

you deserve every subscriber you have

[@halfof333]

i subscribed after your videos on jupiter's moons ... loved them a lot

[@auntvesuvi3872]

Thank you, Alex! 🟠

[@isabellflorence4956]

I love the blue sunsets.

[@MozeyNJ]

I like Mars. Alot!. But this video make me love it even more.

[@EdW-e4w]

Always spectacular, Alex. NASA should have you running their Public Relations department and having a feature widely disseminated once a week, every week.

[@behramcooper3691]

Truly engaging video. Thanks.

[@wazzazone]

Thanks heaps Alex love your work and videos

[@grahameroberts8109]

Is there any point settling on Mars if the ions are still being stripped away?

[@arlahunt4240]

I enjoy learning about other celestial objects .

[@Gregory_Laborde]

Why does Curiosity and its contributions seem to be overlooked in Mars videos, including this one? I spent eight years on the Curiosity MSL operations team, and she collected a lot of fantastic images and data.

[@CitizenOfMars-s9p]

Videos of home make me happy.

[@jugcage7634]

Mars, the most interesting planet of the century, if you ask me. Could watch a 3 hour special of this one.

[@Quasasic]

Excited to watch this 👍

[@oxskirra]

I cant even remember when I first found this channel… gotta be close to 10 yrs now, I have always enjoyed all your videos, as have my kids. As far as a remake idk maybe either a Cassini, Pluto, or Jupiter remaster… idc i will watch them all. Has there been anything news in regard to New Horizons?

[@D4lF4l]

The selfie of all of us on the planet Earth is so profound