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**u2ZQGC6b** · 06-10-2009, 07:02 PM

Question: Giant Star explodes, creates black holes.

From my understanding it's the big stars that create black holes wheras the smaller ones just explode and nothing else.

Why didn't the big bang turn into a black hole? I mean the amount of energy/mass that it would have produced would have been well, bigger then every star/planet/particle combined.

And another question. When an object gets to big and has to much mass they turn into gas right? That's why planets such as Jupiter, Saturn etc are all gas and there are no known planets that have solid surface that large.

So the beginning of the universe would of likely been gas? or plasma or something?

Good questions. And I doubt that anyone who doesn't study the subject has answers to these questions. I will attempt to add some thoughts here.

First, what is mass? Why do things have mass? Is this a property exclusively for matter? If so, there might not have been mass at the start of the universe. I do know that there was no matter right after the "big bang" and thus no gas. If you're interested in this subject, you might want to search for terms like "inflation" and "pre-inflation".

The state of matter has to do with the pressure and the temperature. I guess it should be possible for a very large solid object to exist if the pressure/density is high enough and the temperature low enough.

06-10-2009, 07:02 PM	#16
u2ZQGC6b Join Date Oct 2005 Posts 452 Senior Member	Question: Giant Star explodes, creates black holes. From my understanding it's the big stars that create black holes wheras the smaller ones just explode and nothing else. Why didn't the big bang turn into a black hole? I mean the amount of energy/mass that it would have produced would have been well, bigger then every star/planet/particle combined. And another question. When an object gets to big and has to much mass they turn into gas right? That's why planets such as Jupiter, Saturn etc are all gas and there are no known planets that have solid surface that large. So the beginning of the universe would of likely been gas? or plasma or something? Good questions. And I doubt that anyone who doesn't study the subject has answers to these questions. I will attempt to add some thoughts here. First, what is mass? Why do things have mass? Is this a property exclusively for matter? If so, there might not have been mass at the start of the universe. I do know that there was no matter right after the "big bang" and thus no gas. If you're interested in this subject, you might want to search for terms like "inflation" and "pre-inflation". The state of matter has to do with the pressure and the temperature. I guess it should be possible for a very large solid object to exist if the pressure/density is high enough and the temperature low enough.
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