Astronomy
- Astronomy
Martian equator: A watery outpost?
A catastrophic outpouring of water—four times the volume contained in Lake Tahoe—may have gushed from fissures near the equator on Mars as recently as 10 million years ago.
- Astronomy
Ambitious Mission: Hubble slated to get one heckuva tune-up
If all goes according to plan, astronauts aboard the space shuttle Columbia will embark on the fourth and most technically challenging mission to replace damaged parts and install new detectors on the Hubble Space Telescope.
- Astronomy
The Milky Way’s Middle
Sensitive X-ray, infrared, and radio telescopes are now providing an extraordinarily clear view of the dust-shrouded center of our galaxy.
- Astronomy
X-Ray Universe: Quasar’s jet goes the distance
Collisions with photons left over from the birth of the universe appear to have generated the longest X ray-emitting jet ever found in a distant galaxy.
- Astronomy
UV telescopes: One dead, one revived
One ultraviolet observatory burned up in Earth's atmosphere late last month while another has gotten a new lease on life.
- Astronomy
Supernova dealt deaths on Earth? Stellar blasts may have killed ancient marine life
The explosion of nearby supernova may have caused the widespread extinction of marine life on Earth 2 million years ago.
- Astronomy
Some new stars in the neighborhood
As part of an ongoing survey of faint stars in the southern skies, astronomers have discovered 12 previously unknown stars that lie within a mere 33 light-years of Earth.
- Astronomy
Seeing green: Color of the cosmos
We live in a pale-green universe, according to astronomers who analyzed the colors of some 200,000 galaxies as part of the largest galaxy survey completed to date.
- Astronomy
Are pictures of extrasolar planets in the offing?
The first image of a planet orbiting a star other than the sun may be only a year away.
- Astronomy
Some gamma-ray bursts may occur nearby
A sizable minority of gamma-ray bursts may originate relatively nearby, in galaxies within 325 million light-years of our own.
- Astronomy
Planet Quest
Need help in tracking discoveries of planets orbiting stars beyond our solar system? NASA’s new Planet Quest Web site offers one-stop shopping for planet discovery news. Check out the latest findings, search an atlas of extrasolar planets, and learn about NASA’s proposed missions to search for new worlds, particularly those that might harbor life. Interactive […]
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