June 29, 2001
Scientists using the Hubble Space Telescope have spotted mysterious planet-sized objects apparently running loose in a distant cluster of stars.
Nov. 26, 2001
For centuries scientists have regarded reports of sounds from Meteorswith skepticism. Yet earlier this month plenty of sky watchers heard strange hissing and sizzling noises during the Leonid meteor storm.
Nov. 7, 2001
Awesome plasma hurricanes were one of the surprises revealed when scientists recently peered beneath the stormy surface of our star.
Jan. 3, 2001
The Science@NASA home page has a new look and we're pleased to offer a host of new services as well, including Spanish-language science stories ... and more!
Oct. 23, 2001
There are plenty of Black Holesthat gobble energy. Now astronomers have spotted one in a distant galaxy that's giving some of its energy back.
Jan. 31, 2001
Scientists think Mars once had a thicker atmosphere than it does today, perhaps even comparable to Earth's. But where did all that Martian air go? New evidence from NASA's Mars Global Surveyor spacecraft supports a long-held suspicion that much of the Red Planet's atmosphere was simply blown away -- by the solar wind.
Oct. 18, 2001
NASA's 2001 Mars Odyssey probe is poised to enter orbit around the Red Planet. The spacecraft is on a mission to seek out evidence of Martian water and to explore the planet's radiation environment.
Aug. 24, 2001
Last weekend an amateur astronomer peered through his telescope and found a new comet the old-fashioned way -- by looking!
Feb. 23, 2001
A violent collision with a space rock, like the one that doomed the dinosaurs, may have also caused our planet's greatest mass extinction 250 million years ago.
Aug. 30, 2001
New research links huge African dust clouds with red tides that kill millions of fish along the Florida coast each year.