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There is no known physics theory that is true at every scale—there may never be.

Could war games replace the real thing?

Harvard’s David Edwards talks to Nautilus about how ideas can change the world.

How “probiotic epidemics” help wildlife—and us—survive.

Fifty years ago, who knew we’d learn to clone genes and find water on Mars?

MacArthur Fellow Danielle Bassett says learning works best when you don’t overthink it.