Things changed with the discovery of neutron stars and black holes - objects with gravitational fields so intense that dramatic space and time-warping effects occur.

Black holes destroy any objects that happen to fall victim to their gravitational pull.

A black hole is simply the end of space as we know it!

The black holes of nature are the most perfect macroscopic objects there are in the universe: the only elements in their construction are our concepts of space and time.

General relativity predicts that time ends inside black holes because the gravitational collapse squeezes matter to infinite density.

There are no black holes in the sense of regimes from which light can't escape to infinity.