04.16.12 - Cassini taken images of Saturn's moons Enceladus and Tethys on April 14, during a flyby at an altitude of about 46 miles (74 kilometers).
04.12.12 - Several critical items related to NASA's next-generation James Webb Space Telescope are being tested in the giant thermal vacuum test chamber at NASA's Goddard Space Flight Center.
04.16.12 - Teams from Puerto Rico and Huntsville, Ala. win.
04.13.12 - The NASA/ESA Hubble Space Telescope has captured the brilliance of the compact center of Messier 70.
04.13.12 - On Earth Day, April 22, a performance stage hosted by the Earth Day Network featured presentations by NASA along with a wide variety of entertainment.
04.06.12 - More than 500 high school, college and university students from 20 states and several countries are expected to race their specially crafted lunar rovers or 'moonbuggies.'
04.12.12 - Collisions that destroy up to thousands of icy comets every day.
04.10.12 - NASA is preparing to fly a Deep Space Atomic Clock, or DSAC, demonstration that will revolutionize the way we conduct deep-space navigation.
04.09.12 - Understanding how these cells evolve can provide information on the changing magnetic fields at the boundaries of coronal holes.
04.04.12 - Infrared and X-ray observations from two space telescopes have been combined to create a unique look at violent events within the giant galaxy Centaurus A.