What’s the difference between a comet and an asteroid? The distinction is hazy at best, thanks to the recent discovery of ice on an asteroid.
In April 2010, NASA released the first collection of images taken by its newest solar spacecraft, the Solar Dynamics Observatory (SDO).
Planck and Herschel have begun returning vibrant new images of the Milky Way Galaxy. The satellite duo is scanning the sky at infrared wavelengths that have not been well-studied in the past.
Early next Monday morning (April 5) at 6:21:22 a.m. Eastern Time, the Space Shuttle Discovery is scheduled to be launched on mission STS-131 to the International Space Station.