Last updated on April 16, 2014 at 13:26 EDT

Space News Archive - February 21, 2009


For the fourth time, NASA has delayed the launch of the space shuttle Discover amid valve concerns.


While waiting for high-energy outbursts and cosmic explosions, NASA's Swift Gamma-ray Explorer satellite is monitoring Comet Lulin as it closes on Earth. For the first time, astronomers are seeing simultaneous ultraviolet and X-ray images of a comet.