Water exists only in certain temperatures and pressure levels.
So No.

>>8129405

and when it ran out of fuel it'd become a sun made of ice

>>8129443
Prove it.

>>8129405
Well there could be water planets. The rules of gravity always apply regardless of the type of matter. And if there is a big enough cloud of water molecules in space without forces drifting them apart, then gravity will form a spherical body. The water would be in various aggregate states. Water under high pressure tends to be solid, so only an outer layer would be fluid water if at all.

The question is can a body made entirely of water start a fusion reaction? I don't have a clue.

>>8129497
Disprove it you fucking faggot. I implore you

>>8129530
Make me *enter insult here*.

>>8129405
Assuming a giant mass of water suddenly came into existence and started fusion, it would not remain water for long, as the hydrogen fuses into helium.

>>8129565
not op, and not smart, but is oxygen heavier than hydrogen?

>>8129515
If the water molecules stared to separate under the pressure, and you then had raw hydrogen under extreme pressure, you might get a fusion reaction. I don't think you'd have a very long lived star though, all the oxygen would form the core rather than easily fuse-able helium. Damn I wish I knew more about these things.

>>8129572
By far, it wouldn't fuse if the hydrogen reaction made a star, at least it wouldn't fuse much until the star was dying.

>>8129405
Maybe.
It would be an extremely big bubble of oxygen plasma with some hydrogen plasma in the mix.
I mean - you can`t hope water stays in molecular form at starlike temperatures.

Slightly relevant: https://www.youtube.com/watch?v=HqXcMupk7VM