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Lee Smolin argues that time is more fundamental than physical laws.

Sean Carroll and Alan Guth talk about time.

Past and future may not be what they seem.

How time travel might explain some of science’s biggest puzzles.

How time travel might explain some of science’s biggest puzzles.

A search for humankind’s mark on the Earth.

DNA studies topple the ladder of complexity.

If the constitution of nature itself were changing in time, how would you know?

Are we willing to speed our lives up indefinitely?

Keeping Father Time at bay is more than a question of chemistry.