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Science Forum Index » Astronomy Forum » I have some astronomy questions
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| solar bus driver |
 Posted: Thu May 01, 2008 11:08 pm |
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Guest
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hello
I've been watching "The Universe" on the History Channel and I find that
show to be fascinating. I've learned so much from it but it also generates
questions. If anyone here can help me get clear on a few things I'd really
appreciate it. here are a couple things I've been wondering about.
1) I'm particularly interested in the black hole at the center of our
galaxy... If there is a black hole at the center of our galaxy, is it
sucking in all the stars that are near the center? One of the episodes
stated that when a black hole "eats" a star it creates one of the biggest
events in the universe. So I'm looking at the center of our galaxy and I
see the closer you get the more stars there are, and if there's black hole
in the center, I'm thinking it must be gobbling up stars constantly. Is
that happening?
2) I'm also wondering, if there is a black hole in the center of the galaxy,
are we too far away to receive any of the gravitational pull? When I look
at the galaxy, it reminds me of a bathtub drain. It looks like everything
is swirling and being drawn inwards. Does everything in a galaxy eventually
get sucked into the black hole? Or are we too far away to ever be affected
by the gravity of the black hole at the center?
3) Then I have a question about the big bang. Is it true that everything in
the universe was compacted into something the size of one atom? Did I
really hear that right? If so, does it not follow that every atom and
molecule in my body, and your body, and was there at the big bang? I mean,
I can look at the fingernail on my little pinky toe and consider that it was
there at the big bang... and so was Abraham Lincoln's hat... now that is
cosmic!
Any help on these issues is much appreciated!
Gary in Vermont |
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