The Images of Venus They Didn't Show You in School | Our Solar System's Planets

Everything you could want to know about Venus. The next episode in a refresh of the Astrum ‘Our Solar System’ series, updated to reflect all we’ve learned about our planetary neighbourhood in the last few years.
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Credits
Writer: Jon McColgan
Editor: Nathália Gardin
Thumbnail Designer: Peter Sheppard
Producer: Alex McColgan / Raquel Taylor
NASA/ESO/ESA
#Astrum #space #venus #solarsystemplanets

[@LeeMacMillan-v6i]

Realizing what the environment of Venus is like should tell us all just how precious life is.

[@bericky16]

Alex your voice is golden I would listen to you narrate videos all day long. Love your content so much

[@handlemonium]

He has another channel with hour+ long videos to put us to sleep 😉

[@arnesahlen2704]

GLORIOUS VOICE you have, Mr Alex.

[@user-on9rs3yx3s]

i jerk off to Alex's milky smooth voice every night

[@Timbo6669]

Glorious Alex you have, Mr Voice.

[@MiThreeSunz]

Alex voice is very soothing. It has a real calming effect. 😊

[@1237Noah]

You did forget that the venera program had microphones on them as well. So we do have audio of venus

[@Earth-To-Zan]

smash

[@zanesnep]

smash

[@robloggia]

Really wish we'd try making landers again.

[@spacey_432]

pet

[@spacey_432]

pet > smash

[@Joe-vg1rb]

Always great content from astrum.

[@MasterMotivatorsClub]

It is isn't the impact or lack of an impact, that created the magnetic dynamo (magnetic field). Earth had a healthy spin before its impact and continued to have one after the impact. That spin is what keeps the dynamo active. Venus, like Earth, had a healthy spin. But sometime in the past it too suffered a major impact. That impact flipped it up-side-down--giving it a retrograde spin. It also lost most of its angular momentum. Presumably the object carried it off. The rest was lost by the tidal battle with the sun. We don't view Venus as having a 3 degree tilt, we view it as having a 177.4 degree tilt (meaning its North Pole is upside down). Mars does not have a magnetic dynamo, because its density is too low, indicating it lacks the nickel-iron core. Its core is also too cold. But I like your content. Keep up the good work.

[@HansvandeVen]

There is no up or down in space. So 3° is correct.

[@antonkovalenko364]

Atmospheric drag is said to play a part as well.

[@ozan1234561]

​@@HansvandeVen i guess theres a rule of right hand when describing the orientation of astral bodies

[@HansvandeVen]

@@ozan1234561 Didn't know that. 👍

[@Chris_Garman]

The motion of the molten core produces the magnetic field. Mars used to have a magnetic field and atmosphere but lost them when its core cooled and stopped moving.

[@Swanicorn]

I remember watching that 2012 Venus transit. I literally just made a pin hole in an aluminium foil and could see it clearly. It was amazing how it didn't require any fancy equipment.

[@Ed_Stuckey]

I watched it as well. I did (still do) have and old, cheap 3" refractor scope that included a sun filter. I recall the excitement of having had this opportunity in my lifetime.

[@JanneHirvonen]

Always enjoying when Stellardrone is playing in the background music. :)

[@OsbornIOW]

Always the best videos. Great narration , info and image to match . I've been watching for years 😎

[@Nick-A1]

I haven't been this early since I was born

[@devinoutfleet1998]

lmfao

[@kaelandin]

I was late to my birth

[@cmoore421]

im not even a subscriber and i somehow wound up here

[@disgustof-riley8338]

​@@kaelandin I was three days late to mine. Became an emergency c-section

[@syntaxusdogmata3333]

@@kaelandin Luckily, they couldn't start without you!

[@carltonmamire1927]

The narration and the background music is always on point😊

[@shaneyirak4205]

After watching hurricane coverage for 3 days. Alex’s voice is music to my ears.

[@justgotlucky2740]

I love how you narate everything ❤

[@Sci-Fi-Mike]

Amazing video! Thanks, Alex, and the rest of Astrum!

[@Lego6980]

Good video. Thanks guys.

[@robertfindley921]

You could walk on Venus (figuratively) and keep the sun over your head indefinitely. My nerd joke is "Venus rotates backward, but it rotates so slowly that a day is longer than a year. So on Venus, tomorrow is really yesterday, but it won't happen until next year."

[@wailingalen]

I know very interesting. I regale my friends with this anecdote too

[@Drew-od4dh]

If you told me that it would go over my head but now that I think about it makes sense

[@Chris_Garman]

200 is less than 300.

[@bnthern]

well presented and wonderful use of photos and diagrams.

[@jelletje8]

I saw the 2012 transit at school. It was cloudy, but for a few minutes I could see that black dot on the sun. super cool! (<a href="#" class="seekto" data-time="160">2:40</a>)

[@Markfr0mCanada]

The fact that Venus is losing it's upper atmosphere to space makes me wonder how it's atmosphere's composition has changed over time, and if it would be possible to figure that out.

[@paulkurilecz4209]

nice overview of the planet

[@thirstyCactus]

Does lack of plate tectonics imply that there is little or no internal convection? If so, that would explain the lack of magnetosphere.

[@psammiad]

The Russian Venera missions are massively underrated by the US-biased mass media. It was an incredible achievement for human science.

[@tst894an]

Agree, they should send one more probe to the surface , with all the advancements could get some incredible footage

[@bicivelo]

You got me hooked on Venus from your last video on Venus. Bonus! 😊😊

[@alvaroff81]

Thanks for the video Alex, I find Venus a fascinating place even though it is very hostile. With its phases it helped Galileo to disprove the geocentric model, what I think is quite a step forward in science research, besides being so similar to Earth in size and density but so different on anything else, makes me think on how many things have to go right for life to exist here on Earth and be rewarded at this moment in time with your voice and videos, it feels like a miracle.

[@yeahnatet]

The number of in video ads is destroying the enjoyment I used to get from your vids… can’t watch before bed anymore.

[@ligmasack9038]

Use an Ad-Blocker.

[@bigsarge2085]

Incredible!

[@neilbain8736]

One of the later Venera craft had a microphone. It worked from just before landing but died in the conditions shortly after landing. The recording is out there on the net. It makes interesting listening.

[@ligmasack9038]

it's like 30 Seconds long, and you hear 2 "Pops", and then barely hear the Wind. Not very interesting, and just shows the low quality of "Communist Made".

[@existenceisillusion6528]

Did I miss the part where the atmosphere at the surface is supercritical, or was it not mentioned?

[@mr.boomguy]

I would love it if you make more long form content like 30min+. They're great as sleeping material. I hope it doesn't sound wierd, but it's great. And lively facts too

[@alisatkachova1597]

it’s true - my favorite enrichment before bedtime

[@davidtatro7457]

He has another separate channel with long form audio narration content.

[@JusNoBS420]

Also has the Astrum Sleep podcast wherever you get your podcasts.

[@astrumspace]

www.youtube.com/@astrumextra Check it out ;)

[@macblastoff7700]

Weird? Naw we good. Tone deaf and incredibly disinterested in the actual content that was curated--nailed it!

[@Sam-vlog123-m4c]

Your voice is like a eargasm dude seriously

[@oculusangelicus8978]

This type of Data is enormously fascinating! Thank you for offering so much information to us, they Laymen of society. The data of each Planet is so fascinating to me that when I was a kid, deep into the more scientifically driven Sci-Fi world of Stark Trek, that I created entire star systems with planets and all of the basic data that we have for our other Planets in our Solar system. I wish I can kept the endless work I poured into creating these planets, their stars, whether singular, binary or otherwise, along with each exo-planet, and accompanying satellites

[@Ashwin-zg7rt]

AStRuM and ASMR have same initials. This isnt a coincidence i guess. I always get fantastic sleep when i see your uploads before sleeping

[@Stabacs]

Thanks Alex!

[@auntvesuvi3872]

Thank you, Alex! ☁🔥

[@Roger_Gadd]

If memory serves, contrary to what is stated here, Venus is not the only planet in our solar system with retrograde rotation. Uranus rotates at around 98 degrees to its orbital plane, which means that although its rotation is approximately sideways, technically it is retrograde.

[@saladparfait]

@@Roger_Gadd But its rotation is still "standard" with the rest of the planets when you consider the orientation of its North and South poles.

[@Roger_Gadd]

@@saladparfait No. You're wrong. 98 degrees declination (tilt) means the north pole has gone past sideways and is slightly pointed to the the direction where the south pole would normally be.

[@dphuntsman]

Crazy thought: any chance at all Uranus and Venus’ history can be related? About when did each decide (!) to ‘bend over’, as it were?

[@ivarbrouwer197]

@@Roger_GaddI have a hard time visualising it: doesn’t 98 degrees mean that the North Pole could just as well be the South Pole with 82 degrees?

[@ivarbrouwer197]

@@dphuntsmanno, simply no. The poles of Venus are not at any significant inclination despite being retrograde. The only possible comparison is that a collision might have caused it, but that’s highly speculative and certainly would be unrelated events.

[@AuthenticDarren]

I'd put Venus' lack of magnetic field down to Venus' incredibly slow and backwards rotation.

[@daniels7907]

Also, the lack of a massive moon means that tidal forces are not affecting the interior.

[@thesenate1844]

​@@daniels7907We have no other examples to go off, we are the only habitable place in the universe we know about, and we don't know if it requires a large moon, or a nearby Jupiter sized planet, or both to make it work.

[@daniels7907]

@@thesenate1844 - That's actually what calls attention to this for rocky planets. Mercury, very close to the Sun and subject to strong tidal forces on it's metallic core has a magnetic field. Venus, orbiting further from the Sun with slow rotation and lacking any moons does not have one. Mars, even further away and with just two tiny asteroids as "moons" also lacks one. There seems to be a need for some kind of dynamo causing some difference between the speed of rotation within a planet's different interior layers in order to produce such a field.

[@michaellesak6912]

@@daniels7907 Io is a terrestrial body exposed to tremendous tidal forces, but it has no magnetic field. It has an iron core but no dynamo. Tidal forces may be a part of the puzzle, but doesn’t seem like the deciding factor.

[@daniels7907]

@@michaellesak6912 - In Io's case any magnetic field would be almost impossible to measure (or sustain) given the plasma torus it creates inside of Jupiter's immensely powerful field, plus the electrical arc that extends all the way from io to Jupiter's poles. The energy that would normally be Io's field is being spread out because of its location and the effects its volcanism produce by spewing matter into the Jovian field.

[@bericky16]

Gosh I look at venus every day and thought it was a really bright start never thought about it much I want a telescope now

[@giokun100]

if you want to tell instantly if you're looking at a planet or a star, remember that planets don't twinkle.

[@daniellewis3330]

<a href="#" class="seekto" data-time="780">13:00</a>. Okay, so wait...Venus never had an impact to initialize the core's rotation, so no dynamo, no magnetosphere. But then that also means we've eliminated a possible cause of its slow rotation, then (<a href="#" class="seekto" data-time="295">4:55</a>). It's slow rotation must have been from tidal forces sapping it's angular momentum for billions of years, since it couldn't have been a big impact, because a big impact would've left it with a magnetosphere. And we know that tidal heating can be pretty intense, that's why Io is a molten ball. Which is an extreme case, certainly. BUT That gradual tidal heating, combined with increased solar fluence due to the progressively longer days, seems like a good candidate to explain what kickstarted it's runaway greenhouse effect.

[@ottototo8]

I find absolutely no reason why anyone would think you crazy if you described this meeting of ours.

[@dphuntsman]

Great report! - Dave Huntsman

[@dawienel1142]

The impact hit causing the moon hypothesis is very popular but not a known fact yet. Great video, just add a disclaimer for things that are the popular belief but not yet proven.

[@abloogywoogywoo]

There’s a lot of evidence it did happen. Collisions were common in the early solar system. Jupiter wiped out the Super Earths after all, a very common type of world in the universe.

[@dawienel1142]

@@abloogywoogywoo hence why its popular There are also other potentially viable causes as well requiring no impact. It's not in the realm of fact yet and there are some problems with this as well, hence why I asked for a disclaimer. Your comment doesn't address this, simply having a lot of evidence for a hypothesis doesn't mean it happened.

[@abloogywoogywoo]

@@dawienel1142 when you have two or more competing hypotheses why would pick the ones with less evidence?

[@abloogywoogywoo]

@@dawienel1142 offer an alternative - however, you have no frame of reference since you can’t point to a host planet that has a satellite with such a large relative mass to the primary. Demoted to dwarf planet Pluto doesn’t count. Eventually as the Moon moves away, Earth becomes tidally locked to it, and the two become a double planet system. Again, no exosolar system examples. This is why I said there is a lot of evidence for the impact hypothesis.

[@Chris_Garman]

@@abloogywoogywoo Why would you pick any without conclusive evidence?

[@Mclennnan]

endlessly fascinating!

[@coltendavison4351]

Venus is like a tormented yet still close sibling to Earth, because they are so similar but Venus is such a hellish world, I see it like it’s been through hell whilst earth was lucky. This is because Venus had a stagnant lid instead of plate tectonics and there is evidence of water vapor in Venus’s atmosphere that is being removed slowly.

[@omnologos]

Finally someone wakes up about how special Venus is. But the greenhouse effect is incorrectly mentioned.

[@charlesdorval394]

How so? I don't know any better I can't tell hehehe

[@saladparfait]

How?

[@shaunrietdijk9220]

@@saladparfait The heat on Venus is caused by the atmospheric pressure and has nothing to do with CO2. Same as on earth but we have all been lied to about that.

[@d4rk0v3]

In a pristine dark sky, Venus at peak is so bright its light washes out stars around it, and it casts a hard, distinct shadow that you can clearly see with your eyes. It's remarkable.

[@thorin5591]

Honestly, Pluto would have been a more accurate name for venus since pluto in Roman mythology is the God of the Underworld. The dwarf planet pluto, on the other hand, should be named venus since it has a heart-shaped ice basin.

[@ernestareheart4238]

A cold heart?

[@zam6877]

I didn't know that there was more than two probes with cameras There were clearly pictures I hadn't before This was a perfect overview of Venus

[@theincrediblefella7984]

Nobody has ever said it was Earth's twin. Youre the first person in my 15 years of studying astronomy that has said this.

[@AceSpadeThePikachu]

This video seems like it might be slightly out of date, as in the past few years it has been definitively determined that at least some volcanoes on Venus are in fact active and spewing out lava as we speak. This was determined both by inferred imagery of the surface showing hot spots in the calderas of some of the volcanoes as well as topography maps from the 70s and 80s compared to now, which clearly show recent lava flows have occurred.

[@thirstyCactus]

The Romans were quite apt, then, to name Venus, the god of love. A hellish landscape, indeed.

[@aadixum]

The person who named Uranus:

[@macblastoff7700]

I look forward to more images of foggy, crisp mornings on Golden Pond amongst the birch trees--of Venus.

[@vladvlog9677]

Very good.

[@RoseGold1224]

Wow what telescope do I need to see Venus that clear!!

[@absentiaaaaa]

For all the tweens to identify with: Earth is the class you're hoping for but you get Venus

[@wargodsix]

Venus is a example of earths possible future but so is mars

[@FredF78]

So this Venus tail that reaches earth that you cannot see with your eyes, could it have some other impact on our planet that we know to little about but that could explain some phenomenon?

[@holly.fickle1607]

Nothing slaps like Venus + Astum 😍

[@kapsi]

<a href="#" class="seekto" data-time="380">6:20</a> if Earth and Venus have same gravity, why doesn't Venus atmosphere expand, and lower its density to Earth air density? Or why doesn't Earth air compress to the same pressure as in Venus?

[@Chris_Garman]

different composition.

[@MadmanCZ]

Venus is just like women. Beautiful on the outside, but once you get to know her, deep underneath the cover, she shows the real deal. I am sure someone here knows what I am talking about :)

[@andrewkoestl]

Women?

[@PersephonevanderWaard]

Cis-het straight men?

[@mapache-ehcapam]

I am an ugly virgin

[@FastChargeMango]

Exactly. Women have been using filters before they were digital (makeup). Venus has pretty makeup but underneath it's hell lol

[@zeeveestudios]

If it makes you feel better, she’s *hot* as hell!

[@V3lk0n]

Let's consider it that one cousin that likes to play with fire.

[@GoshaLover-cr7vq]

Love to watch you while eating, nice content!

[@randoir1863]

I'm guessing there's no water or large bodies of water on Venus ?

[@gregoryrowlerson8457]

Maybe a very long time ago when the sun was less powerful and Venus was cooler? That's only hypothesising.

[@Ghost_70026]

Lightening on venus might be of higher voltage than the lightening on earth. Or is it gonna be same voltage?

[@Nostromo_LV426]

A goddess on a mountain top Was burning like a silver flame The summit of beauty and love And Venus was her name She's got it Yeah, baby, she's got it Well, I'm your Venus I'm your fire, at your desire

[@deadpin]

I see you Pluto, I see you.

[@Skandalos]

<a href="#" class="seekto" data-time="390">6:30</a> Youre making it sound as if the high temperature of Venus atmosphere was mostly due to the CO2 greenhouse effect. Actually CO2 only plays a minor role. The major causes for its high temperature are the proximity to the sun and the enormous mass of the atmosphere. Mars too has an atmosphere of CO2 yet it is colder than earths south pole because its atmosphere is very thin and its farther from the sun.

[@215Gallagher]

I watched the 2012 transit of Venus with my GOTO refractor using a small white plastic screen attached to the telescope. I took a few photos, I'll have to find them.

[@Pacmandies]

Gracias por el video ♥

[@Sebastianmaz615]

Could you say that Venus has more in common with Io than Earth? Mainly because of volcanoes and the temperature. I must say that the graphics at <a href="#" class="seekto" data-time="782">13:02</a> are/were splendid. (Venus after an impact) Or maybe it's just me ... easily impressed. 😀

[@BeemingJoint]

We need to get Venus a gravity smack so that it can start rotating anti-clockwise. You know what I mean. Just give it a big smack get it spinning again

[@Adam-pu6jg]

Correction: Venus's axial tilt is actually greater than 177°, it is almost perfectly upside down. The fact that Venus is upside down also accounts for it's retrograde rotation.

[@maxplanck9055]

Did Venus once have a solid iron core and a dynamo electro magnetic field but it stopped and the solid iron core melted and the entire interior of Venus is now just magma at various temperatures?✌️❤️🇬🇧

[@folee_edge]

<a href="#" class="seekto" data-time="44">0:44</a> Sounds like my exwife

[@andy.bernard]

Can you add the farenheit temps in parentheses or something next to your temps?

[@Akulion1]

I wonder if other planets in our solar system harbour simple or even microscopic life. If the Mariana trench here on Earth taught us one thing, it was that sometimes life exists in the most unexpected and inhospitable places. So sometimes I wonder what lurks under the atmospheres of Jupiter Saturn Neptune and Uranus.

[@bittswet3593]

Planetary classification got to be the most confusing thing in astronomy that constantly bother me (because it also introduce panic esp when they say we discovered a new "super earth" or "new earth like in the habitatable zone" making people think of alien and conspiracy theories while these terms basically reference only to radius mass and the planet being rock in the not too cool or too hot zone of its star venus is right there to teach us this mindset is WRONG

[@CadTrii234]

As the Venera probes were sent pre-1989, you shouldn't say the Russians landed them, but the Soviets.

[@nataliealice05]

Soviets were Russians.

[@Andrew-is7rs]

Technically its Mercury closest to us ... but love all your videos

[@Drew-od4dh]

Why is mercury closest?

[@Em4gdn1m]

Mercury is closer on average, but Venus is closer at its closest.

[@Andrew-is7rs]

@@Drew-od4dh Its more often on our side of the sun and as such more often closest, and at its closest is only 4m miles further sway than Venus at its closest. Interesting isnt it, you would never think it would you

[@joshuawalker6312]

You can imagine the power of all planets, including his sun all aligned that will be a great tug of war power

[@dphuntsman]

The fact that Earth and Venus appear to have totally different types of cores……why would that be? How can that be explained?

[@ioanbota9397]

Realy I like this video its so so interestyng

[@abstuli1490]

Venus is like the perfect description of hell. Heat that melts lead, rains sulfuric acid and an atospheric pressure equivalent to 3000ft below sea level. Venus also goes by the name Morningstar and the Latin name Lucis Ferre (Light Bringer) which is the name of Lucifer.

[@mirthenary]

How deep is venus's atmosphere compared to earth's?

[@eff9266]

а что если отправить на Венеру спутники-абсорберы, чтобы они отфильтровали хотя бы серу из атмосферы. или роботов. или мы не найдем настолько огнеупорных материалов чтоб они там продержались достаточно долго? и доставить серу в космос чтоб она не вернулась обратно на Венеру

[@Neoentrophy]

I have heard some compelling arguments for colonising venus through floating colonies in the upper atmosphere but seems like a bad choice overall

[@robertcalvin2643]

Ahhhh the joy of Hollywood Special Effects.

[@misterlyle.]

So Venus is sort of a message for humanity, "Your world could have been just like this."

[@adammiller4389]

It really bothers me that you’re showing mercury and mars as the same size as earth and Venus. A lot of people don’t understand how much smaller they are and you’re reinforcing this.

[@brianarbenz1329]

Venus also has no moon, and I believe it and Mercury are the only moonless planets in our solar system. That also reflects the absence of any collision in its history.

[@redhammer5783]

So parts of venus's atmosphere mix into earth atmosphere every once in awhile? If so thats pretty cool.

[@dr.a006]

Earthlings: GLoBAL WArMinG!!😱🥵 Venus: pfftt, whatever. 😑

[@Akash-uq8wg]

You don't turn your back to family! Now al of a sudden V is adopted?

[@lesalmin]

Doesn't the direction of orbiting and rotation of the planets depend on which side of the orbiting plane they are viewed from?

[@vaingloriant]

me when venus drops a fire album 🔥🔥🔥 <a href="#" class="seekto" data-time="423">7:03</a>

[@ronaldgarrison8478]

<a href="#" class="seekto" data-time="33">0:33</a> The "acid-laced environment" isn't necessarily as bad as you might suppose. What you have is hydrogen sulfate. For that to be sulfuric acid, you need water. There is not much of that on Venus. (However, there is some-details on request.)

[@reidflemingworldstoughestm1394]

Shwew! We dodged that bullet.

[@greghelton4668]

Plate tectonics probably has a lot to do with earth being a dual planetary system. I suspect Venus would have been more earth like had it had a large moon. Maybe a project for our descendants.

[@I_Do_Not_Know_What_I_am_Doing]

I am surprised by the lack of a magneto sphere. I wonder how Venus can still have an atmosphere and not be like Mars.

[@packersamurai]

A great initial mystery of primordial planet formation.

[@mapache-ehcapam]

According to NASA, UV rays from the sun interact with the upper gasses of Venus' atmosphere "exciting" them... whatever that means. When the Solar wind gets to these excited gases it creates a weak magnetic field. So venus has a magnetic field but it is weak and interestingly it is created by the same thing that could blow its atmosphere away... pretty cool.

[@I_Do_Not_Know_What_I_am_Doing]

@@mapache-ehcapam Thank-you

[@Capitan0Guinea]

actually the closest planet title depends in relative positions in their orbits. mercury is regulary most close to heart due his short orbit period, when venus is opposite side behind the sud respect to earth. every 2 years mars is the closest

[@Astro-pilot_Night]

I am early :) But yeah I see why Venus shouldn't be earths twin

[@twoeightythreez]

The irony is Venus actually is our twin. Back in the early days of the solar system, when the planets were formed, Venus and earth were very much alike, especially when the habitable zone of the sun was closer to it than it is today. For context, watch the movie "Twins", it delves into how genetically identical humans can be such completely different people based on the conditions they were reared in. There are some very interesting plausible theories that say possibly humanity actually got it start on Venus, that microbial life began on Venus and the massive impact that made Venus spin backwards, compared to the rest of the planets, ejected that therefore jumpstart the process of life on earth. Venus might literally be our mother.

[@TorZireael]

It's the evil twin

[@Astro-pilot_Night]

@@TorZireael ik

[@Skandalos]

<a href="#" class="seekto" data-time="215">3:35</a> "all the planets orbit anti-clockwise around the sun" ... I guess you arbitrarily picked the POV from what we call north. Cause from the southern POV they orbit clockwise.

[@scoon2117]

Can you make a video about Haumea the egg shaped dwarf planet?