The latest news on satellites
Scientists have developed a radio astronomy experiment to detect a signal from the early universe.
Researchers have developed a shoe-embedded radar system that may help you find your way.
Cosmic GPS would employ pulsing stars, not satellites, as celestial beacons.
Extrasolar planet traces its origin outside the Milky Way.
A warship's missile hits its target to cheers from the control room.
HONOLULU—"It was like something out of Star Wars," said a senior defense official who watched in a Pacific Command control room here as the U.S. military shot down its broken reconnaissance satellite last night. The satellite was traveling at upwards of 17,000 mph with 1,000 pounds of hydrazine--that's "a hazardous fuel which could pose a danger to people on Earth," as the Department of Defense explained in a release.
Barack Obama racked up his ninth and 10th straight victories last night, defeating Hillary Clinton in Wisconsin and Hawaii. Obama's wins make Ohio and Texas must-wins for Clinton. The two Democratic candidates will debate in Texas tomorrow. John McCain also won convincingly in Wisconsin and Washington State as he continues to press on toward the GOP nomination.