Whether you can go back in time is held in the grip of the law of quantum gravity.

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• Kip Thorne:

  Sending people into space is very important culturally. That's really the justification. You cannot

• Kip Thorne:

  The human race has a yearning to explore. That's part of our biological and psychological makeup.

• Kip Thorne:

  A big misconception is that a black hole is made of matter that has just been compacted to a very s

• Kip Thorne:

  A black hole really is an object with very rich structure, just like Earth has a rich structure of

• Kip Thorne:

  Gravitational waves will bring us exquisitely accurate maps of black holes - maps of their space-ti

• Kip Thorne:

  When gravitational waves reach the earth, the waves stretch and squeeze space. This is a tiny stret

• Kip Thorne:

  As early as I can remember, I wanted to be a snowplow driver. When you grow up in the Rocky Mountai

• Kip Thorne:

  I became interested in this question of whether you can build wormholes for interstellar travel. I

• Kip Thorne:

  We see no objects in our universe that could become wormholes as they age.

• Kip Thorne:

  If you go down through the horizon of a black hole, at the center you don't find a tunnel that lead