Space
- Astronomy
Cosmic Blowout: Black holes spew as much as they consume
Supermassive black holes at the cores of galaxies can blow out as much material as they swallow, creating high-speed winds that may seed the universe with oxygen, carbon, iron, and other elements essential for life.
- Planetary Science
Spacecraft reveal Mars’ molten heart
Tracking the precise motion of a spacecraft orbiting Mars, planetary scientists have deduced that the core of the Red Planet is at least partially liquid.
- Astronomy
By the light of a starry eruption
Astronomers calculating the brightness of a supernova explosion witnessed in the 11th century estimate that it was likely the most brilliant stellar event in recorded history.
- Planetary Science
Red Planet
The imaging team of NASA’s Mars Global Surveyor spacecraft has doubled the number of Mars pictures available to the public with the release of a new archive of photos. The archive contains all the pictures that were taken by Mars Global Surveyor from September 1999 through February 2000 and includes the images that were taken […]
- Astronomy
X-ray flare from a dim source
An X-ray flare coming from a old, failed star has surprised astronomers.
- Astronomy
A comet’s chilly origin
Astronomers have detected argon in comet Hale-Bopp, the first time an inert gas has been found in one of these icy bodies and an indication that the comet formed in the frigid outer solar system between the orbits of Uranus and Neptune.
- Astronomy
Telescope finds tiny moon of Jupiter
Astronomers reported the discovery of Jupiter's 17th known moon, the first Jovian moon discovered in 25 years and perhaps the tiniest known satellite of any planet.
- Astronomy
Honors for Science News astronomy writer
Science News astronomy writer Ron Cowen is a recipient of the third David N. Schramm award for distinguished writing on high-energy astrophysics.
- Astronomy
Cosmic Afterglow: Gamma-ray bursts may one-up themselves
New observations suggest that gamma-ray bursts may be even more energetic than scientists had estimated.
- Astronomy
Planet’s Slim-Fast Plan: Extrasolar orb is too close for comfort
A new study of the atmosphere of a planet outside the solar system suggests that some orbs will vaporize if they orbit too close to their parent star.
- Planetary Science
Planets in Autumn
On Sept. 22, Earth joined two other worlds in the solar system where it is northern autumn. At this NASA Web site, learn more about Earth’s September equinox and ponder the bizarre seasons of other planets. Go to: http://science.nasa.gov/headlines/y2000/ast22sep_1.htm?list110076
- Astronomy
Ordinary matter: Lost and found
Astronomers believe they have finally found the whereabouts of most of the ordinary matter in the universe.
