Turnsky
Murdock
Registered: Dec 2000
Location: Devonport, Tasmania, Australia
Posts: 369 |
I'll use my somewhat limited knowledge of astrophysics here and try (i say TRY) to explain one or two things:
1. not all stars supernova, some of the matter remains and congeals together and makes a neutron star (thin 10x density or so of our own sun) then collapses even further on itself to make a black hole( 100x density or so). there should be ample gravity one way or the other
2. or, the nebula gets more and more dense the further you go into it, there for it may be quite possible to have jump node the a gravitational "mass" without having a planet or a star, it could be made up of various bits of matter (Hydrogen & helium most likely)
and they are closer together in the heart of a nebula than on the outskirts, that, and radiation higher at the heart of some nebulas.
*breathes deeply*
I think i'll shut up now. if i got this around the wrong way i did say i'll Try didn't i? 
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