Night Watchman: Close Encounters
Witness the striking meeting ofthree planets and a sliver of moon.
by Bob Berman
Light Elements: Pigeons on Parade
Breeders have created head ruffs, chest frills,and fantails for the lowly, abused bird.
A Head Full of Hope
How do you launch something into orbit without using any fuel? A prototype spacecraft relies on a To attack a terrifying form of brain tumor, surgeons are adding a tiny new tool to their kit: a genetically tweaked virus, designed to mark cancer cells for death.
Technology Watch: Rocket Science
How do you launch something into orbit without using any fuel? A prototype spacecraft relies on a ground-based laser to push it aloft.
Evolution Watch: King Claw
Ninety million years ago in what is now Argentina, a terrible predator hunted some of the biggest animals ever to walk on land. Meet Megaraptor.
New Women of the Ice Age
Forget about hapless mates being dragged around by macho mammoth killers. The women of Ice Age Europe, it appears, were not mere cavewives but priestly leaders, clever inventors, and mighty hunters.
A Brief Tour of a Bad Cosmic Neighborhood
We may be headed into a giant interstellar cloud that could mess up the solar system for decades.
Monster of the Tub
Through the icy depths of Lake Champlain glides a mysterious beast, affectionately known as Champ. maybe it's a plesiosaur left over from the age of the dinosaurs. or maybe it's just a very peculiar water wave.