Is Methane Evidence of Life on Mars?
Is the discovery of methane in Mars' atmosphere the first direct evidence of extraterrestrial life? Extraordinary claims require extraordinary evidence,…
10th Planet Discovered
Astronomers have discovered a new planet orbiting our Sun, which is larger than Pluto. It's located 97 times further than…
Supernova, Before and After
When astronomers discover a supernova, it's too late to learn much about the star before it exploded. Even if astronomers…
Super Climate Simulation Models Oceans, Ice, Land and Atmosphere
Scientists from NASA, MIT and other institutions have developed a comprehensive simulation of the Earth's climate that accurately models ocean,…
Mimas and Tethys Circling Saturn
Two of Saturn's icy moons, Mimas and Tethys, circle the planet in this infrared image of the Ringed Planet taken…
Flying Foam Grounds Shuttle Fleet
Although Discovery made it safely into orbit, potentially catastrophic chunks of foam dislodged from its fuel tank on Tuesday's launch.…
Build Big by Thinking Small
NASA is helping researchers build machines and materials at the smallest scales - known as nanotechnology - to enable future…
Water Ice in a Martian Crater
This image, taken by ESA's Mars Express spacecraft, shows a large patch of water ice sitting on the floor of…
Martian Fossil Finder in the Works
NASA engineers are working on a new instrument that could peer through rock and dirt on Mars to see evidence…
NASA’s Prototype Solar Sail Inflates Perfectly
Sailing through space on nothing but photons from the Sun is a nice dream, but we're still years away from…