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2008-12-15 16:36:00

During warmer climate, surface frost could have melted and moistened Martian soil. The Martian arctic soil that the Phoenix Mars Lander dug into this year is very cold and very dry. However, when long-term climate cycles make the site warmer, the soil may get moist enough to modify the chemistry, producing effects that persist through the colder times. Phoenix found clues increasing scientists' confidence in predictive models about water vapor moving through the soil between the atmosphere...

2008-12-02 12:27:00

PHOENIX, Dec. 2 /PRNewswire/ -- A net 11 percent of chief information officers (CIOs) in the Phoenix area expect to hire information technology (IT) professionals in the first quarter of 2009, according to the most recent Robert Half Technology IT Hiring Index and Skills Report. Thirteen percent of executives surveyed plan to add staff during the quarter and 2 percent anticipate reductions in personnel. The net 11 percent increase is the same as the area's fourth-quarter 2008 forecast and...

2008-12-04 10:12:00

HAMPTON, Va., Dec. 4 /PRNewswire-USNewswire/ -- Ten years in the making, NASA's Mars Phoenix Lander successfully completed its mission last month. The mission uncovered significant discoveries about never-before explored areas of the Red Planet. Scientists were able to verify the presence of water-ice in the Martian subsurface, find small concentrations of salts that could be nutrients for life, and observe snow descending from the clouds. (Logo:...

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2008-12-02 10:20:00

The U.S. space agency says it has, most likely -- after a month of fruitless attempts -- reached the end of communications with its Phoenix Mars Lander. The National Aeronautics and Space Administration said it has ceased its daily attempts to communicate with the spacecraft and has stopped using its Mars orbiters to hail the lander and listen for its signals. The final communication from Phoenix remains a brief signal received via NASA's Mars Odyssey orbiter on Nov. 2, the space agency said....

c13256cd951fd385652cd52fcf83cc471
2008-11-10 16:05:00

NASA's Phoenix Mars Lander has ceased communications after operating for more than five months. As anticipated, seasonal decline in sunshine at the robot's arctic landing site is not providing enough sunlight for the solar arrays to collect the power necessary to charge batteries that operate the lander's instruments. Mission engineers last received a signal from the lander on Nov. 2. Phoenix, in addition to shorter daylight, has encountered a dustier sky, more clouds and colder temperatures...

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2008-11-05 10:20:00

NASA's Phoenix Mars Lander has communicated with controllers daily since Oct. 30 through relays to Mars orbiters. Information received over the weekend indicates Phoenix is running out of power each afternoon or evening but reawakening after its solar arrays catch morning sunlight. The fraction of each day with sun above the horizon is declining at the Martian arctic landing site. Dust raised by a storm last week continues to block some of the sunshine. "This is exactly the scenario we...

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2008-10-30 09:55:00

NASA'S Phoenix Mars Lander entered safe mode late yesterday in response to a low-power fault brought on by deteriorating weather conditions. While engineers anticipated that a fault could occur due to the diminishing power supply, the lander also unexpectedly switched to the "B" side of its redundant electronics and shut down one of its two batteries. During safe mode, the lander stops non-critical activities and awaits further instructions from the mission team. Within hours of receiving...

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2008-10-28 18:05:00

PASADENA, Calif. -- In a race against time and the elements, engineers with NASA's Phoenix Mars Lander mission hope to extend the lander's survival by gradually shutting down some of its instruments and heaters, starting today. Originally scheduled to last 90 days, Phoenix has completed a fifth month of exploration in the Martian arctic. As expected, with the Martian northern hemisphere shifting from summer to fall, the lander is generating less power due to shorter days and fewer hours of...

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2008-10-22 15:30:00

NASA's Phoenix Mars Lander has finished scooping soil samples to deliver to its onboard laboratories, and is now preparing to analyze samples already obtained. Scientists are anxious to analyze the samples as the power Phoenix generates continues to drop. The amount of sunlight is waning on Mars' northern plains as late-summer turns to fall. The spacecraft's robotic arm is digging into the lower portion of the "Upper Cupboard" and "Stone Soup" areas of the Phoenix worksite. Its Surface...

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2008-10-16 08:40:00

HiRISE Reveals Rare Polar Impact Craters On Mars An odd, solitary hill rising part-way down an eroding slope in Mars' north polar layered terrain may be the remnant of a buried impact crater, suggests a University of Arizona planetary scientist who studied the feature in a new, detailed image from the HiRISE camera onboard NASA's Mars Reconnaissance Orbiter. HiRISE, or the High Resolution Imaging Science Experiment, headed by Alfred McEwen of the Lunar and Planetary Laboratory, is based at...