Science News
Transforming Galaxies
Feb. 10, 2012
Markarian 779 has a distorted appearance because it is likely the product of a recent galactic merger between two spirals.
Alien Matter in the Solar System: A Galactic Mismatch
Feb. 10, 2012
Science@NASA Headline News — 2012
"Alien matter" detected by a NASA spacecraft orbiting Earth shows that the chemical make-up of our solar system differs from that of the surrounding galaxy. Researchers discuss the possible meaning of this mismatch in today's story from Science@NASA.
Milky Way's Black Hole Grazes on Asteroids
Feb. 9, 2012
Astronomers using Chandra data have seen the giant black hole at the center of the Milky Way devouring asteroids.
New Views Show Old NASA Mars Landers
Feb. 9, 2012
New color images from NASA's Mars Reconnaissance Orbiter show the agency's 2008 Phoenix Mars Lander.
Mars-Bound Rover Carries Coin for Camera Checkup
Feb. 8, 2012
The Lincoln penny is part of a camera calibration target attached to NASA's Mars rover Curiosity.
Galaxy Evolution Explorer in Standby Mode
Feb. 8, 2012
Galex was placed in standby mode as engineers prepare to end mission operations, nearly nine years after the telescope's launch.
Evidence for Mars Ocean 3 Billion Years Ago
Feb. 7, 2012
Mars Express has detected sediments on Mars that are reminiscent of an ocean floor.
Mars Drought Makes Life Unlikely
Feb. 7, 2012
Mars may have been arid for more than 600 million years, making it too hostile for any life to survive on the planet's surface.
High Planetary Tilt Lowers Odds for Life?
Feb. 6, 2012
Highly-tilted worlds would have extreme seasons, subjecting life to alternating periods of scorching and subzero temperatures.
Hubble Observes NGC 1073
Feb. 6, 2012
Hubble Space Telescope has taken a picture of the barred spiral galaxy NGC 1073, which is found in the constellation of Cetus.