On Monday, NASA's Mars rover Opportunity got to within about 160 feet of the rim of the half-mile-wide Victoria Crater, the rover's destination since late 2004.
NASA's Mars Reconnaissance Orbiter has extended the long-armed antenna of its radar, preparing the instrument to begin probing for underground layers of Mars.
NASA data show that Arctic perennial sea ice, which normally survives the summer melt season and remains year-round, shrunk abruptly by 14 percent between 2004 and 2005.
NASA's newest spacecraft at Mars has completed the challenging half-year task of shaping its orbit to the nearly circular, low-altitude pattern from which it will scrutinize the planet.
This image from NASA's Spitzer Space Telescope reveals the complex life cycle of young stars
This summer, a science team set out on a two-week expedition of Earth's own little version of Jupiter's moon Europa
NASA's Mars rover Opportunity is closing in on what may be the grandest overlook and richest science trove of its long mission.
A new image from NASA's Spitzer Space Telescope is helping astronomers understand how stardust is recycled in galaxies.
A new study using NASA and National Oceanic and Atmospheric Administration (NOAA) data finds consistent evidence that Earth's ozone layer is on the mend.
Supermassive black holes in some giant galaxies create such a hostile environment, they shut down the formation of new stars, according to NASA Galaxy Evolution Explorer findings published in the August 24 issue of Nature.
Every spring brings violent eruptions to the south polar ice cap of Mars, according to researchers interpreting new observations by NASA's Mars Odyssey orbiter.
Astronomers have long scrutinized the vast and layered clouds of the Orion nebula, an industrious star-making factory visible to the naked eye in the sword of the famous hunter constellation. Yet, Orion is still full of secrets.
NASA's Cassini spacecraft has found lakes on Saturn's moon Titan. The lakes are most likely the source of hydrocarbon smog in the frigid moon's atmosphere.
Thomas H. May, manager of the Business Opportunities Office and Supplier Diversity Program at NASA's Jet Propulsion Laboratory in Pasadena, Calif., has been selected as one of this year's 50 influential minorities in business by the Minority Business and Professional Network, Incorporated.
Scientists from NASA, the National Oceanic and Atmospheric Administration, universities and international agencies will study how winds and dust conditions from Africa influence the birth of hurricanes in the Atlantic Ocean.
Astronomers using NASA's Spitzer Space Telescope have found evidence that dusty disks of planet-forming material tug on and slow down the young, whirling stars they surround.
New radar images from NASA's Cassini spacecraft revealed geological features similar to Earth on Xanadu, an Australia-sized, bright region on Saturn's moon Titan.
Thirty years after the first successful landing on Mars by NASA's Viking spacecraft, the ambitious mission continues to evoke pride and enthusiasm for future space exploration.
For the first time, NASA scientists using space-based measurements have directly monitored and measured the complete cycle of water movement for an entire continent.
University scientists using Global Positioning System (GPS) software developed by JPL have shown that GPS can determine, within minutes, whether an earthquake is big enough to generate an ocean-wide tsunami.