New observations from NASA's Mars Reconnaissance Orbiter indicate that the crust and upper mantle of Mars are stiffer and colder than previously thought.
NASA news briefings, live commentary and updates before and after the scheduled Sunday, May 25 arrival of the agency's Phoenix Mars Lander will be available on NASA Television and on the Web.
The most recent supernova in our galaxy has been discovered by tracking the rapid expansion of its remains, using NASA's Chandra X-ray Observatory and the National Radio Astronomy Observatory's Very Large Array.
A new NASA-led study shows human-caused climate change has made an impact on a wide range of Earth's natural systems, including permafrost thawing, plants blooming earlier across Europe and lakes declining in productivity in Africa.
