Ever since astronauts returned from another world, scientists have been mystified by some of the moon rocks they brought back. Now one of the mysteries has been solved.
An orbiting NASA spacecraft just starting to study Mars with six science instruments has successfully tested another key part of its payload, a versatile radio for relaying communications with robots on the surface of Mars.
NASA's Ulysses spacecraft has begun its third voyage around the sun's poles, in a quest to learn how the sun affects weather in space, plus cellphones, satellites and electricity on Earth. Hear more from the Ulysses project scientist.› Audio clips
NASA's Stardust mission received the 2006 Aviation Week and Space Technology Program Excellence Award. In January, Stardust successfully completed a seven-year, 2.8 billion mile journey to fly by a comet and return samples to Earth.
Engineers are striving to restore full communications with NASA's Mars Global Surveyor on the 10th anniversary of the spacecraft's Nov. 7, 1996, launch.
A recent photo from the Cassini spacecraft shows the mighty planet Saturn, and if you look very closely between its wing-like rings, a faint pinprick of light. That tiny dot is Earth bustling with life as we know it.
Something scary appears to be slithering across the plane of our Milky Way galaxy in this new Halloween image from NASA's Spitzer Space Telescope.
Seventy years ago this Halloween, a group of young men clambered out of a truck and carried their cumbersome test equipment into the dirt and scruffy brush of Pasadena's Arroyo Seco.
A new JPL-UCLA Joint Institute will strive to better understand and predict regional environmental and climate change and support future space missions.› UCLA release →
During a flyby of Saturn's moon Titan on Wed., Oct. 25, the Cassini spacecraft will obtain the first detailed maps of the composition of this moon's Earth-like features, including dunes, rocky plains, steep highlands and possible volcanoes and lakes.
Scientists with NASA's SIM PlanetQuest mission, scheduled to launch in the next decade, have calculated how many potentially habitable planets the mission might detect around other stars.
JPL has been honored for a research and development innovation -- an untethered, self-powered robotic system to visually inspect gas pipelines.› NASA release
New NASA and NOAA data, including chemical maps from JPL's Microwave Limb Sounder, confirm that this year's Antarctic ozone hole is the largest on record.› NASA story
Our neighboring Andromeda galaxy appears tranquil, but there's new evidence from NASA's Spitzer Space Telescope that it collided head-on with a dwarf galaxy more than 200 million years ago.› Harvard-Smithsonian Center for Astrophysics release →
Although 200 planets have been discovered around other stars, finding an Earthlike planet that could sustain life will require sending advanced telescopes into space, according to Wesley Traub, chief scientist for NASA's Navigator Program.
Could all of the asteroids, comets, and planets in our Milky Way galaxy be made of a similar mix of dusty components?
NASA's Stardust mission received "Popular Mechanics" Breakthrough Award 2006 for innovative spacecraft design, mission planning and execution, and scientific achievement. JPL's Tom Duxbury, Stardust project manager, was on hand to receive the award.
El Nino, a cyclical warming of the tropical Pacific Ocean that can profoundly affect weather worldwide, appears to be in its early stages of development, according to scientists at NASA and NOAA.
This infrared image of the Day fire burning in Southern California was acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer on NASA's Terra satellite at 10 p.m. Pacific Time, Sept. 28.
The many "personalities" of our great galactic neighbor, the Andromeda galaxy, are exposed in this new composite image from NASA's Galaxy Evolution Explorer and the Spitzer Space Telescope.