Why are things in space round?

[admin]

Why are most planets and moons (mostly) spherical?

Why are things in space round? : Read more

 

[Tranent@69]

I would say the tatti shaped moons are not the finished article at the minute
So isn't earth for that matter
X

 

[pse001]

Why are most planets and moons (mostly) spherical?

Why are things in space round? : Read more

What I wonder about is: Why aren't most galaxies spherical? Are they not bound by the same gravity?

 

[SerengetiLion]

Why are most planets and moons (mostly) spherical?

Why are things in space round? : Read more

Because they "spin"

 

[David A. Johnson]

There are 3 reasons though not equal proportional. Spinning is one has this force makes fluffy by throwing all on earth outward. We get a lot of visitors that come and stay. Over meliniums this is substantial so again Spinning insure a evened blanket. Gravity pull and holds things together by a pulling in or toward core. The core is a bit responsible by being flexible from being
Molten. But the most responsible thing for all the round spheres would be vacuum. Vacuum pulls out in a anticollapsing or else all would give way and fall by gravity laws pulling everything toward center making a smaller by condensing planet/star/satellite. There are bodies along with hosting sun(s)/stars also pulling outward and those are factors of persuasion that may or not be considered.

 

[waxwing]

Relatedly, water blobs in space are spherical. Liquids are far more likely and faster to deform to spheres than solids are.