Drew


 * Black holes** **due Monday** **used coupon**

A black hole is an object with a gravitational field so large not even light can escape it. Black holes become when a star has a supernova explosion or when a star collapses into itself. Black holes can be detectable if any kinds of matter interact with it. No one has seen a black hole, but we know they can be 10 - 55 times bigger than our sun. It can also be up to 10^31 kilograms (ten with 31 zeros after it). We also know that stars with very large masses can become black holes. Black holes were first theorized in the 1970's. they are produced by dying stars or suns. They are made when stars explode. We also know that there was one spotted 50 trillion light years away. http://imagine.gsfc.nasa.gov/docs/science/know_l2/black_holes.html and [|http://hubblesite.org/explore_astronomy/black_holes/home.] have lot of good information.



In my opinion I think black holes are absolutely amazing. They are huge things we don't know much about and they are an interesting topic to talk about. I didn't know black holes were that big, nor did I know how they were formed, but now I know a lot more about them. I also didn't know that they have more gravity than some of the larger planets in our solar system. I knew the had a lot but I didn't know the had that much gravity. That is why I think black holes are absolutely amazing.

Some people believe that black holes are not real simply for the fact that they are black and space is black, so they think scientists are just seeing things. But I think that they are real because scientists have found a few and many of them are looking for them, so they all can't be seeing things. Another reason why people don't believe that black holes are real is because there mass is so huge that they don't think there could ever be something with that much mass.