An object at least 500-feet-long (152-meters-long) will swing by Earth on Tuesday—but scientists say there's no chance of a collision.

Virgin Galactic's Richard Branson and aerospace designer Burt Rutan debuted a model of a ship planned to carry commercial passengers on a suborbital joyride within a few years.

Atom-thick sheets of carbon rolled into cylindrical nanotubes are set on their ends—like hairbrush bristles—in the darkest known material. For now, there's "none, none, none more black."

SpaceShipTwo—about the size of an executive jet—is planned to begin ferrying passengers into space within a couple of years, say officials from space tourism firm Virgin Galactic.

A new study of violent Jovian storms suggests that Jupiter's jets are driven by internal heat and wind and not solar radiation.

Warmer oceans might increase a phenomenon called vertical wind shear that makes it hard for hurricanes to form, strengthen, and stay active, new research says.

Subs could dodge sonar and columns would not obstruct concert-hall acoustics if the objects were covered in theoretically possible sound-wave-bending material, scientists say.

Giant salamanders and other vulnerable amphibians will receive conservation attention and aid through a new program run by the Zoological Society of London.

The space agency is wrestling with a potentially dangerous shaking problem that could destroy the Ares I after launch. The rocket is to lift crews into space.

Heat from the volcano, which last erupted 2,000 years ago, may be contributing to the melting of nearby glaciers, scientists say.

Embryo clones of two men were made by inserting skin-cell nuclei into fertilized eggs, California scientists report.

Australia is retrieving two anti-whaling activists held on a Japanese whaling ship they jumped aboard this week in Antarctic waters.

Not a sailboat and not a parachute—this German-built ship aims to save fuel by towing a kite to capture wind power high above the water.

A roundworm turns its ant hosts into red-berry look-alikes to entice birds to swoop in and spread the parasites far and wide, scientists say.

Artifacts, coins, and parchments have been found in a lead box in a hollow stone in México City's Metropolitan Cathedral.