Ithaca NY (SPX) Aug 06, 2004 - After more than six months of examining the photographic and spectral data from the rover, Mars mission scientists confirm that the albedo - which is the percentage of sunlight reflected on the red planet's dusty surface - indicates important variations in mineral and dust composition.
Paris (ESA) Aug 05, 2004 - This image of the southern part of Valles Marineris, called Melas Chasma, was obtained by the High Resolution Stereo Camera (HRSC) on board the ESA Mars Express spacecraft.
Pasadena CA (JPL) Aug 05, 2004 - NASA's Spirit rover has climbed higher into rocky hills on Mars, and its twin, Opportunity, has descended deeper into a crater, but both rovers, for the time being, are operating with some restrictions while team members diagnose unexpected behavior.
Pasadena CA (JPL) Aug 04, 2004 - Millions of people have viewed pictures from NASA's Spirit on the Mars rovers home page and other Internet sites. Beginning today, a more complete set of science data from Spirit's first 30 martian days is posted on a site primarily for scientists and technical researchers, but also available to anyone who's interested.
Moffett Field CA (SPX) Aug 03, 2004 - NASA scientists have modified a scientific Web site so the general public can inspect big regions and smaller details of Mars' surface, a planet whose alien terrain is about the same area as Earth's continents.
Pasadena CA (JPL) Aug 03, 2004 - Opportunity marked its 180th sol on Mars without pausing to celebrate. Originally slated for missions of 90 sols each, both Spirit and Opportunity have passed the double-mission milestone and are continuing their phenomenal journeys of discovery.
Pasadena CA (JPL) Jul 29, 2004 - On sol 198, Spirit completed a long overnight reading by the Moessbauer spectrometer on a rock target called Sabre, then ground a second rock abrasion tool hole on a target called Mastodon. The alpha particle X-ray spectrometer was placed in the fresh hole in preparation for a reading, which was started during the overnight Odyssey communication pass.
Pasadena (JPL) Jul 28, 2004 - On sol 174, Opportunity completed close-up examination of a rock target called Arnold Ziffel using the rover's microscopic imager, Moessbauer spectrometer and alpha particle X-ray spectrometer. All observations were successful.
Paris (ESA) Jul 28, 2004 - This perspective image of a fractured crater near Valles Marineris on Mars was obtained by the High Resolution Stereo Camera (HRSC) on board the ESA Mars Express spacecraft.
Pasadena CA (JPL) Jul 27, 2004 - Opportunity continued its exploration of Endurance Crater the past five sols, and is now roughly 11 meters (about 36 feet) into the crater. The only drive during this period was on sol 171, when the rover turned around, backed down across the slope, then turned towards a feature called Razorback.
Pasadena CA (JPL) Jul 27, 2004 - On sol 194, Spirit took a large microscopic imager mosaic, consisting of 34 images at multiple positions, of a target called Sabre on an outcrop rock called Wooly Patch. This was followed by a two-hour reading by the Moessbauer spectrometer and an overnight, seven-hour reading by the alpha particle X-ray spectrometer.
Moffett Field CA (SPX) Jul 26, 2004 - This banner image shows Mars at Gusev Crater in approximately true color, as if one were standing beneath the hills called Columbia.
Moffett Field CA (SPX) Jul 26, 2004 - These images of 'yardangs', features sculpted by wind-blown sand seen here near Olympus Mons on Mars, were obtained by the High Resolution Stereo Camera (HRSC) on board the ESA Mars Express spacecraft.
Moffett Field CA (SPX) Jul 22, 2004 - The Spirit rover will soon begin to climb up the Columbia Hills, backward.
Moffett Field CA (SPX) Jul 21, 2004 - While rovers and orbiting spacecraft scour Mars searching for clues to its past, researchers have uncovered another piece of the red planet in the most inhospitable place on Earth -Antarctica.
Antarctica (SPX) Jul 21, 2004 - While rovers and orbiting spacecraft scour Mars searching for clues to its past, researchers have uncovered another piece of the red planet in the most inhospitable place on Earth - Antarctica.
