Earth's atmosphere & oceans came from space, not from volcanoes

On Dec 19, 12:40*pm, Antares 531 wrote:
On Sat, 12 Dec 2009 16:55:27 -0500, Yousuf Khan

wrote:
Two separate studies are claiming that Earth's two most prominent
surface fluids, air and water, came not from within but from outer
space. I have my doubts about these studies' conclusions, it seems like
a stretch that there could be enough air and water brought from meteors
that are being randomly hurled toward the inner solar system, especially
when the vast majority of them are likely heading towards the Sun.

* *Yousuf Khan

Where did the crepe rings around Saturn come from? The are made up of
water/ice coated dust particles.

Gordon

Moons and ice are captured. This is not saying that water doesn't
come from within planets and moons.

~ BG

Antares 531 wrote:
Where did the crepe rings around Saturn come from? The are made up of
water/ice coated dust particles.

Gordon

Current theory is that one of Saturn's moons broke up and the rings are
the debris left over from it.

Of course, recently they discovered a nearly invisible additional ring
around Saturn, the Phoebe-Ring, which they suspect is created by
emissions from (probably asteroid impacts on) Saturn's moon, Phoebe.

Yousuf Khan

On Mon, 28 Dec 2009 12:04:29 -0500, Yousuf Khan
wrote:

Antares 531 wrote:
Where did the crepe rings around Saturn come from? The are made up of
water/ice coated dust particles.

Gordon

Current theory is that one of Saturn's moons broke up and the rings are
the debris left over from it.

Of course, recently they discovered a nearly invisible additional ring
around Saturn, the Phoebe-Ring, which they suspect is created by
emissions from (probably asteroid impacts on) Saturn's moon, Phoebe.

Yousuf Khan

Thanks, Yousuf. Is it possible that Earth once had similar crepe
rings? If so, what was the time frame and what happened to them?

Gordon

Antares 531 wrote:
Thanks, Yousuf. Is it possible that Earth once had similar crepe
rings? If so, what was the time frame and what happened to them?


It's possible, but it depends on having a shepherd moon to stabilize
them. Otherwise they dissipate. All of the rings around the gas giants
are shepherded by moons. They usually need to be shepherded on the inner
part of the ring as well as the outer part. One moon does the inner
part, the other does the outer part. We only have one moon, the Moon. If
we had two or more, then we could've had rings.

Yousuf Khan