I was reading up on the Andromeda Galaxy and it was saying that it was 2.2 to 3 million light years away from earth. So my question is how do we measure how far it is in light years?
If the black hole were to disperse itslef in any way that you perfer considering we haven't observed any black hole disapearing, what would happen to the matter that the black hole pulled into its singularity?
The reason that gravity on Earth is greater then the gravity on the Moon is because the larger the mass of an object then the higher the gravity. That is why we are orbiting the sun. Because its mass is greater then the planets that we know of in our solar system. And since the suns mass is...
So I was reading threads and i came across a question on what happens when a black hole collapses. As I was reading the responses, I saw some people commenting in which they asked if the mass the black hole absorbed was released when the black hole collapsed. If it did would the black hole...