Black holes may be apertures to elsewhen. Were we to plunge down a black hole, we would re-emerge, it is conjectured, in a different part of the universe and in another epoch in time . . . Black holes may be entrances to Wonderlands. But are there Alices or white rabbits?

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

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

Black holes can bang against space-time as mallets on a drum and have a very characteristic song.

There is a wide, yawning black infinity. In every direction, the extension is endless; the sensation of depth is overwhelming. And the darkness is immortal. Where light exists, it is pure, blazing, fierce; but light exists almost nowhere, and the blackness itself is also pure and blazing and fierce.

Only black holes of very low mass would emit a significant amount of radiation.