Black holes are very exotic objects. Technically, a black hole puts a huge amount of mass inside of zero volume. So our understanding of the center o….

Gravity wins over all other known forces..

Any time things go to infinity in physics, we know we haven't gotten it right..

As an astronomer, I get to ignore the details of the things that we dont understand. Theres a lot of work that we can do on scales that we do underst….

The Keck telescope, which is the largest in the world, had opened just before I began my faculty position at UCLA..