July 20, 2007 24/7 News Coverage our time will build eternity
Layers Exposed In Crater Near Mawrth Vallis
Tempe AZ (SPX) Jul 19, 2007
This image covers an impact crater roughly 4 kilometers (2.5 miles) in diameter. The subimage shows just a small segment of the crater rim (1336 x 889; 3 MB). The surface outside the crater (top) is relatively dark, while the interior wall of the crater has a lighter tone. A few dark patches on the crater wall have small dunes or ripples on their surfaces, and are likely pits filled with dark sa ... read more
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    Clay Studies Alter View Of Early Mars Environment
    Fayetteville AR (SPX) Jul 19, 2007
    A study of the thermodynamics of clays found on Mars suggests that little carbon dioxide could have been present during their formation, which contradicts a popular theory of the early Martian atmosphere and will send researchers looking for other explanations for clay formation. Vincent Chevrier of the University of Arkansas and Francois Poulet and Jean-Pierre Bibring of the Universite Paris-Su ... more

    MDA Secures Role On Preparations For European Mars Rover Mission
    Richmond BC (SPX) Jul 18, 2007
    MacDonald, Dettwiler and Associates Ltd, a provider of essential information solutions, announced today that it has been awarded a contract for 1M euro with EADS Astrium, to provide an advanced technology solution for ExoMars, the upcoming Mars mission of the European Space Agency. MDA will design a robotic chassis for the ExoMars rover, and provide a prototype solution for testing at ESA ... more

    Hunt For Life On Mars Goes Underground In New NASA Mission
    Washington (AFP) Jul 17, 2007
    The hunt for evidence of life on Mars will go underground next year when a NASA probe digs beneath the surface of the red planet's arctic northern plains, US scientists revealed Monday. In a departure from previous missions -- which have seen robotic vehicles explore the planet's hills and craters -- NASA's Phoenix Mars Lander will instead dig into Martian soil for conditions favorable to past o ... more

    Opportunity Waiting For Dust To Settle
    Pasadena CA (JPL) Jul 17, 2007
    Due to extensive dust storms in Mars' southern hemisphere causing record atmospheric opacity levels, Opportunity is currently experiencing its lowest power levels to date. The tau measurement as of sol 1225 is 4.12, resulting in a mere 280 watt-hours of array energy. A tau measurement of 5.0 would result in approximately 150 watt-hours. If tau begins to approach 5.0, the team will have to begin ... more

    The Origin Of Perennial Water-Ice At The South Pole Of Mars
    Paris, France (ESA) Jul 16, 2007
    Thanks to data from ESA's Mars Express mission, combined with models of the Martian climate, scientists can now suggest how the orbit of Mars around the Sun affects the deposition of water ice at the Martian South Pole. Early during the mission, the OMEGA instrument (Visible and Infrared Mineralogical Mapping Spectrometer) on board Mars Express had already found previously undetected perennial d ... more

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    Dawn Launch Rescheduled To September; Phoenix To Launch In August
    Washington DC (SPX) Jul 09, 2007
    The launch of NASA's Dawn spacecraft, a mission that will explore the two largest objects in the asteroid belt in an effort to answer questions about the formation of our solar system, has been rescheduled to September. The decision was made today to move the launch to September after careful review by NASA's Science Mission Directorate officials, working with Dawn mission managers, the Dawn pri ... more

    Dust Delays Mars Crater Entry
    Pasadena CA (JPL) Jul 06, 2007
    A giant dust storm brewing for more than a week on Mars has become worse and is affecting surface operations of the Mars Exploration Rovers, Spirit and Opportunity. Because the rovers depend on solar energy for survival, and the dust is partially blocking the sun, the storm is being watched closely by the rover scientists and engineers. Opportunity's entry into Victoria Crater is delayed for at ... more

    Scientists Find That Earth And Mars Are Different To The Core
    Oxford UK (SPX) Jul 06, 2007
    Research comparing silicon samples from Earth, meteorites and planetary materials, published in Nature (28th June 2007), provides new evidence that the Earth's core formed under very different conditions from those that existed on Mars. It also shows that the Earth and the Moon have the same silicon isotopic composition supporting the theory that atoms from the two mixed in the early stages of t ... more

    Spirit Independently Approaches And Studies A Rock
    Pasadena CA (JPL) Jul 06, 2007
    Spirit remains healthy after attempting to wrap up scientific studies on an outcrop that contains several tantalizing, high-silica targets. High-silica targets are of interest to scientists because water might have been involved in forming them. Spirit still has some work to do on two targets, known as "Eileen Dean" and "Innocent Bystander," before moving on to the elevated, circular plateau k ... more

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    Spirit Solar Power Levels Continue To Rise
    Pasadena CA (JPL) Jul 06, 2007
    Spring cleaning continued on NASA's Spirit rover, as atmospheric turbulence on Mars cleared away more dust from the solar panels on the rover's 1,233rd sol, or Martian day, of exploration (June 22, 2007). As a result of this most recent dust-clearing event, Spirit out-produced the electrical energy of Spirit's twin, the Opportunity rover on the opposite side of Mars, by about 50 watt-hours. (Th ... more

    Seeking Mars Survival Secrets
    Princeton NJ (SPX) Jul 06, 2007
    David Smith always wondered whether other planets might harbor life, so when he actually got the opportunity to investigate, he jumped at it. His decision launched him on a year-long mission, leading him to the Kennedy Space Center and back. Now, after months exploring whether Earth bacteria can survive on the surface of Mars, he has returned with findings that could help NASA plan better missio ... more

    Martian Tectonic Signatures At Aeolis Mensae
    Paris, France (ESA) Jul 06, 2007
    The High Resolution Stereo Camera (HRSC) on board Mars Express has provided snapshots of the Aeolis Mensae region. This area, well known for its wind-eroded features, lies on a tectonic transition zone, characterised by incised valleys and unexplained linear features. Illuminated by the Sun from the west, the pictures are of a ground resolution of approximately 13 metres per pixel. The reg ... more

    NASA Mars Rover Ready For Descent Into Crater
    Pasadena CA (SPX) Jun 29, 2007
    NASA's Mars rover Opportunity is scheduled to begin a descent down a rock-paved slope into the Red Planet's massive Victoria Crater. This latest trek carries real risk for the long-lived robotic explorer, but NASA and the Mars Rover science team expect it to provide valuable science. Opportunity already has been exploring layered rocks in cliffs around Victoria Crater. The team has planned ... more

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