| Subject: | Re: A new class of comets that orbit within the main asteroid belt |
|---|---|
| From: | Bob Cain |
| Date: | Wed, 12 Apr 2006 01:58:40 -0700 |
| Newsgroups: | sci.astro.amateur, sci.physics |
Sam Wormley wrote:
> Comets are "undercooked leftovers" that remained after clouds of dust
> and gas condensed to form the Sun and planets some 4.5 billion years
> ago. Composed of ice, dust and gas, they are often known as "dirty
> snowballs".
Anybody got a good theory of how they came to be? I mean why were they
left behind with the composition they have? Where did the water come
from to start with?
Bob
--
"Things should be described as simply as possible, but no simpler."
A. Einstein
|
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: Weatherman.Com - - - starting to revamp.., Chuck Taylor |
|---|---|
| Next by Date: | Re: Recommendations for beginner scopes., Rick Evans |
| Previous by Thread: | at last a news item that was astro correct. tvnz, don . lotto |
| Next by Thread: | Re: A new class of comets that orbit within the main asteroid belt, Sam Wormley |
| Indexes: | [Date] [Thread] [Top] [All Lists] |