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The role played by time at the beginning of the universe is, I believe, the final key to removing the need for a Grand Designer, and revealing how the...more

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Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp s...more

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Before 1915, space and time were thought of as a fixed arena in which events took place, but which was not affected by what happened in it. Space and ...more

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Time can behave like another direction in space under extreme conditions.

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We lived in a tall, narrow Victorian house, which my parents had bought very cheaply during the war, when everyone thought London was going to be bomb...more

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Even if it turns out that time travel is impossible, it is important that we understand why it is impossible.

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A zero-gravity flight is a first step toward space travel.

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If we want to travel into the future, we just need to go fast. Really fast. And I think the only way we're ever likely to do that is by going into spa...more