this post was submitted on 04 Aug 2024
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Science Memes

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1107
W Earth (mander.xyz)
submitted 3 months ago by [email protected] to c/[email protected]
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[โ€“] [email protected] 1 points 3 months ago

Idk looks good to me

๐ŸŒ–๐ŸŒ”

[โ€“] [email protected] 20 points 3 months ago (1 children)

Oh, holy hell, I just uncontrollably giggled at that for so long, my chest hurts. I sent it to my only group of friends, and it looks even better in smaller thumbnail form. Good gracious.

[โ€“] [email protected] 16 points 3 months ago

WANT COOKIES

[โ€“] [email protected] 4 points 3 months ago

๐Ÿ‘€

[โ€“] [email protected] 15 points 3 months ago

Toothless?

[โ€“] [email protected] 24 points 3 months ago (1 children)

I mean she's not wrong. Isn't it, astronomically speaking, pretty rare that Earth has a moon that appears exactly the same relative size as its host star?

[โ€“] [email protected] 7 points 3 months ago (1 children)

As far as we know it's extremely rare and a bit of a mystery how it came to be that way. One theory is that it was the result of a collision with another protoplanet in the early formation of the solar system.

[โ€“] [email protected] 17 points 3 months ago (2 children)

But it isn't a mystery at all. The moon is moving away from us. For billions of years the moon's apparent size was larger than the sun. For billions of years later it will appear smaller. It's simply a lucky coincidence we live in this moment in time, in that regard.

[โ€“] [email protected] 1 points 3 months ago

I really think we should be called a twin planet system. It would be much more representative of our relationship with our satellite.

[โ€“] [email protected] 17 points 3 months ago (1 children)

The "mystery" I was referring to was how we came to have such a large moon to begin with. It's very unusual, and moons on other terrestrial planets are much smaller and probably formed through completely different ways than earth's moon.

[โ€“] [email protected] -5 points 3 months ago (1 children)

That isn't clear at all and I'm not even sure I agree, regardless. Hydrostatic equilibrium is a regularly occuring thing. No, I'm not looking up how regular. The Universe is mind-bogglingly enormous and everything is unusual. Have a good day.

[โ€“] [email protected] 8 points 3 months ago (1 children)

Massive W for johannesvanderwhales

[โ€“] [email protected] 16 points 3 months ago

Imagine not even having a proper magnetic field smh

[โ€“] [email protected] 7 points 3 months ago

Earth mentioned raaaaaah ๐Ÿ—ฃ๏ธ๐Ÿ—ฃ๏ธ

[โ€“] [email protected] 37 points 3 months ago* (last edited 3 months ago) (2 children)

How perfectly moon fits between earth and the sun is one of the weirdest things about our solar system for me.

[โ€“] [email protected] 4 points 3 months ago (1 children)

You kidding?

There is loads of space between the Earth and the Sun to fit the Moon.

[โ€“] [email protected] 1 points 3 months ago* (last edited 3 months ago)

no way dude just look at it puff

[โ€“] [email protected] 32 points 3 months ago (1 children)

Especially because it hasn't always and it won't forever. Humanity's existence just happens to coincide with the period of amazing eclipses.

[โ€“] [email protected] 7 points 3 months ago (2 children)

Yep this. Call in sick, quit, max out your credit, go halfway around the world, do literally whatever is needed to be done to see a total eclipse if you haven't been able to experience it yet. It's unreal.

https://www.timeanddate.com/eclipse/list-total-solar.html

[โ€“] [email protected] 8 points 3 months ago

It's pretty fantastic, but not that good.

[โ€“] [email protected] 4 points 3 months ago

From what I've seen of future eclipse maps, it'll probably be a very long time before I get to see another eclipse at totality

Relevant XKCD: https://xkcd.com/2921/

[โ€“] [email protected] 8 points 3 months ago* (last edited 3 months ago) (2 children)

Phobos is this big and still not round? Uh, what was the name, the size where stone behaves like a liquid. Well, Phobos doesn't have that yet?

[โ€“] [email protected] 10 points 3 months ago* (last edited 3 months ago) (1 children)

I believe you are looking for hydrostatic equilibrium. There don't seem to be good answers for this online, but according to Robert Black on this Quora post:

There isn't a minimium per se but the generally accepted number for a mass to form into a sphere under its own gravity is 1/10,000th the mass of the Earth or 600 quintillion kg. As for size, it really depends on the composition of the body. The numbers are generally accepted to have a diameter of about 600km for a rocky body.

A quintillion is 1 x 10 to the 18th and Phobos has a mass of 1.0659 x 10 to the 16th kilograms and a diameter of 22 kilometers.

[โ€“] [email protected] 1 points 3 months ago

Yes that, thanks!

[โ€“] [email protected] 13 points 3 months ago (2 children)

Phobos is tiny. It's just very close compared to our moon. 9500km as compared to our 384000km.

[โ€“] [email protected] 5 points 3 months ago

And the sun looks smaller from Mars because it's further away, making Phobos seem bigger

[โ€“] [email protected] 1 points 3 months ago

Ah, thanks! Also, Phobos is fast!

[โ€“] [email protected] 6 points 3 months ago

[โ€“] [email protected] 9 points 3 months ago (1 children)

I think Mars eclipses might be better. It means they have googly eyes, and googly eyes make everything funnier.

[โ€“] [email protected] 2 points 3 months ago

Eye*

Only one

[โ€“] [email protected] 122 points 3 months ago (2 children)

[โ€“] [email protected] 15 points 3 months ago

The void stares back

[โ€“] [email protected] 53 points 3 months ago

awesome pic, what telescope did you use?

[โ€“] [email protected] 39 points 3 months ago (2 children)

1000016482

[โ€“] [email protected] 5 points 3 months ago

I'm so happy I wasn't the only one who saw this.

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