Feature:
Chandra Turns Ten
Astronomers are celebrating 10 years of discovery by NASA's Chandra X-ray Observatory. Today's story highlights some of Chandra's most surprising, violent and beautiful images of the high-energy Universe.
Best of NASA Science 2008
Take a photographic journey through another year of stunning images and wondrous science.
Active Mercury
A NASA spacecraft gliding over the surface of Mercury has revealed that the planet's atmosphere, magnetosphere, and its geological past display greater levels of activity than scientists first suspected.
Best of NASA Science 2007
Go back in time through the year 2007 to view the stunning images of wondrous science highlights of NASA.
Could Life on Earth Have Come From Ceres?
The dwarf planet Ceres is rarely mentioned as a candidate for habitability, but the possible presence of an ocean and hydrothermal vents suggests it is plausible. Could it have seeded the young Earth?
The Girl Who Named Pluto
In a 2006 interview, Venetia Burney Phair talks about how she, at age 11, got to name a planet. Mrs. Phair died at the age of 90 last month.
New Gamma-Ray Burst Smashes Cosmic Distance Record
NASA's Swift satellite found a gamma-ray burst from a star that died when the universe was only 630 million years old. The event, dubbed GRB 090423, is the most distant cosmic explosion ever seen.