A Few Hundred People Turned To Bone

Medical researchers struggle to understand—and hope eventually to cure—a bizarre and little-known disease that slowly but inescapably turns its victims into masses of solid bone

When Is a Planet Not a Planet?

Arguments for and against demoting Pluto


Video

Where Time Comes From

The clocks that coordinate your cellphone, GPS, and more

Video

Computer Vision Syndrome and You

Save your eyes. Take breaks.

Video

What Happens in 60 Seconds

Quantifying human activity around the world

Writers

Up
Down

More in Magazine

More back issues, Sept 1995 to present.

Just In