[Tuesday, September 2, 2008] Scientists have begun to analyze a sample of soil delivered to NASA's Phoenix Mars Lander's wet chemistry experiment from the deepest trench dug so far in the Martian arctic plains.

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[Tuesday, September 2, 2008] Clouds scoot across the Martian sky in a movie clip consisting of 10 frames taken by the Surface Stereo Imager on NASA's Phoenix Mars Lander.

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[Wednesday, September 3, 2008] NASA announced Wednesday the new Carl Sagan Postdoctoral Fellowships in Exoplanet Exploration, created to inspire the next generation of explorers seeking to learn more about planets, and possibly life, around other stars.

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[Thursday, September 4, 2008] A fork-like conductivity probe has sensed humidity rising and falling beside NASA's Phoenix Mars Lander, but when stuck into the ground, its measurements so far indicate soil that is thoroughly and perplexingly dry.

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[Wednesday, September 10, 2008] The next soil sample that NASA's Phoenix Mars Lander will deliver to its deck instruments will go to the fourth of the four cells of Phoenix's wet chemistry laboratory, according to the Phoenix team's current plans.

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[Thursday, September 11, 2008] As power permits, Spirit continues to acquire the individual frames of an image mosaic known as the "Bonestell panorama," which will portray a full-color view of the rover's winter outpost.

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[Thursday, September 11, 2008] Opportunity has completed one of the most fantastic scientific campaigns of the Mars Exploration Rover mission -- the interior investigation of "Victoria Crater."

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[Thursday, September 11, 2008] The Robotic Arm Camera on NASA's Phoenix Mars Lander took this image on Sept. 1, 2008, at about 4 a.m. local solar time during the 97th Martian day, or sol, since landing.

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[Friday, September 12, 2008] NASA's Phoenix Mars Lander has photographed several dust devils dancing across the arctic plain this week and sensed a dip in air pressure as one passed near the lander.

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[Monday, September 15, 2008] NASA has selected a Mars robotic mission that will provide information about the Red Planet's atmosphere, climate history and potential habitability in greater detail than ever before.

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[Thursday, September 18, 2008] The Phoenix Mars Lander's Surface Stereo Imager took this image of the spacecraft's crumpled heat shield on Sept. 16, 2008, the 111th Martian day of the mission. The 2-1/2 meter heat shield landed southeast of Phoenix.

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[Saturday, September 20, 2008] Opportunity is moving on to investigate some bright patches of dust. Scientists hope to ascertain if the patches contain material not thoroughly analyzed in the past.

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[Saturday, September 20, 2008] Spirit continues to conserve solar power while performing light science activities during the Martian winter. During the past week, Spirit studied the atmosphere and acquired two frames of the full-color image mosaic known as the "Bonestell panorama."

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[Monday, September 22, 2008] Scientists are now able to better explain why Mars's residual southern ice cap is misplaced: the martian weather system is to blame. And so is the largest impact crater on Mars - even though it is nowhere near the south pole.

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[Monday, September 22, 2008] NASA's Mars Rover Opportunity is setting its sights on a crater more than 20 times larger than its home for the past two years.

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[Tuesday, September 23, 2008] Water may have played a role in shaping parts of the Martian landscape a billion years longer than previous studies have shown, according to a research team led by Catherine Weitz, a senior scientist with the Planetary Science Institute.

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[Tuesday, September 23, 2008] The robotic arm on NASA's Phoenix Mars Lander slid a rock out of the way during the mission's 117th Martian day (Sept. 22, 2008) to gain access to soil that had been underneath the rock

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[Wednesday, September 24, 2008] Evidence that lake deposits once formed inside impact craters on Mars has been presented today at the European Planetary Science Congress in Muenster.

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[Thursday, September 25, 2008] NASA's Mars Reconnaissance Orbiter has revealed hundreds of small fractures exposed on the Martian surface that billions of years ago directed flows of water through underground Martian sandstone.

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[Friday, September 26, 2008] Mangala Fossae is approximately 1000 km long, located south-west of the volcanic region Tharsis, where the highest known volcano in the Solar System, Olympus Mons, is located. The images were obtained on 21 March 2007.

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[Friday, September 26, 2008] During the past week, Opportunity has been trying to reach a patch of dust between two crests of the ridge surrounding "Victoria Crater."

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[Friday, September 26, 2008] With Martian winter on the wane, Spirit is using significantly less energy to stay warm. During the winter solstice, Spirit needed 90 watt-hours to run the heater. Now, the rover uses between 30 and 40 watt-hours.

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[Friday, September 26, 2008] NASA will hold a media briefing Monday, Sept. 29, at 2 p.m. EDT, to discuss the latest developments, findings and upcoming science opportunities of the Phoenix Mars Lander.

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[Monday, September 29, 2008] It's snowing on Mars, at least that's what NASA's Phoenix Mars Lander has detected from Martian clouds. Also recent soil experiments provide evidence of past interaction between minerals and liquid water, processes that occur on Earth.

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[Monday, September 29, 2008] NASA's Phoenix Mars Lander has detected snow falling from Martian clouds. Spacecraft soil experiments also have provided evidence of past interaction between minerals and liquid water, processes that occur on Earth.

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