Wired in Space
A Texas cardiologist goes into Orbit with 29 rats, 2,478 jellyfish, and a plastic tube snaking through his veins to the entrance of his pounding heart.
by Peter Elkind
Time Travel Redux
Blow up a balloon very, very fast, or zip around a pair of cosmic strings, and you're on your way.
A Reasonable Sleep
Sleeping with babies could ward off sudden infant death syndrome.
The Transplanted Self
The mice in Suzanne Ilstad's lab are not quite themselves--there's a little rat in them, and therein may lie the secret to human organ transplants.
Reversal of Fortune
Where is it written in stone that the man should have all the fun? In some species of animals, evolution has made females the polygamists.
Forbidden Planets
Astronomers have looked long and hard for planets outside the solar system. At last their search may have paid off.
Kids, Creoles, and the Coconuts
Derek Bickerton plans to isolate little kids before they've learned any language to see if they'll invent one.