So every solar system has a black hole at its center..does that mean each system implodes at its end?
if each sytem implodes, does that mean ultra billions of black holes create the super dense matter that could consolidate into one mass collide then rebirth the big bang theory again, or would they scatter beyond ability to the edge of what we know nothing about?
OK ok OK…sorry I meant to write GALAXY!!!! Yes I know the Solar System does not have a black hole.
Every ones entitled to make a mistake ;P
First, you mean every GALAXY has a black hole at its center, not every solar system.
Galaxy = a huge collection of stars, gas, dust, and assorted other matter orbiting around a common center of gravity.
Solar system = a star (or stars) and its attendant planets, moons, asteroids, comets, etc.
Our solar system includes the Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, all of their moons, a few dwarf planets, a bunch of asteroids, and a bunch of comets. No black holes.
Our GALAXY contains our solar system (and many, many others) as well as nebulae, star clusters, dust lanes, and yes, black holes.
I hope that clears things up a bit. Now, let’s proceed.
The supermassive black holes (hereafter, SMBHs) in the middles of galaxies do gobble up matter that’s close to them, but that only accounts for a tiny portion of the galaxy’s matter as a whole. Most of the mass in our galaxy (including our planet and Sun) is well outside the range of being devoured by our own SMBH, and the stars that orbit the SMBH close in are so bathed in radiation that they couldn’t form habitable planets anyway. So, no living organisms anywhere would ever be in real danger of being swallowed by a SMBH.
The mass that’s devoured by a SMBH also doesn’t vanish. It’s still there…it’s just really, really, really compacted. But, it still exerts its gravitational influence over the rest of the matter in the galaxy, which means that the galaxy isn’t going to fly apart at the seams either.
At the heart of your question is another physical question with deep implications: is the universe open, flat, or closed. That will have a lot to do with the fate of the universe. There are lots of “ifs” involved, but you can summarize them pretty neatly:
(A) An open universe has an average density that is LESS THAN the critical density needed to halt the universe’s expansion. The universe will not only continue to expand, but may even accelerate in doing so. Eventually the universe will reach a state of thermodynamic equilibrium as all stars burn out and heat is distributed evenly.
(B) A flat universe, like an open universe, expands forever. However, the rate of expansion continually decreases, due to the fact that the universe’s average density is exactly equal to the critical density. In this scenario, the universe still experiences a heat death.
(C) A closed universe has an average density that is greater than the critical density. In this scenario, gravity eventually halts the universe’s expansion and drags it back into a singularity, the so-called “Big Crunch”.
What’s going to determine the ultimate fate of the universe is not the number of black holes (not even SMBHs), but the overall mass present in the universe. Since most of that mass is probably dark matter, and since we don’t know how to detect dark matter yet, scientists don’t yet have any definitive conclusions about what’s going to happen trillions of years hence. Still, it’s fascinating to think about.
I hope this helps. Good luck!
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