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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.

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

To John Archibald Wheeler, the race to explain time was personal.

A bird’s-eye view on life and the universe.

How to see yourself in a world where only math is real.

What happened before the Big Bang?

Want to see evidence of other universes? Just look up.

Our home in the universe continues to rock out of control.

Searching the heavens for our sun’s family.