Mars

  • Opportunity’s Escape from Dune
    In their explorations of Mars, both the Spirit and Opportunity rovers found evidence that liquid water was once on the planet's surface. Joy Crisp, project scientist for NASA's Mars Exploration Rovers, discussed the rovers' long journey and their surprising discoveries at a public lecture
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  • Opportunity Escapes Sandtrap
    The Opportunity rover has been stuck in a soft, shallow dune on Mars for weeks. Its extraction today was greeted with celebration by the science team. The sandtrap analogy echoes back to the 'hole-in-one' landing that improbably placed the rover into a crater rich with
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  • Phoenix Chances Rise for Descent
    NASA has given the green light to a project to put a long-armed lander onto the icy ground of the far-northern martian plains. NASA's Phoenix lander is designed to examine the site for potential habitats for water ice and to look for possible indicators of
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  • More Evidence for Martian Water
    Images, taken by the High Resolution Stereo Camera (HRSC) aboard ESA's Mars Express spacecraft, show a large depression called Iani Chaos and the upper reaches of a large outflow channel called Ares Vallis. Ares Vallis is one of several big outflow channels on Mars in
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  • Spirit, the Problem Child
    In their explorations of Mars, both the Spirit and Opportunity rovers found evidence that liquid water was once on the planet's surface. Joy Crisp, project scientist for NASA's Mars Exploration Rovers, discussed the rovers' long journey and their surprising discoveries at a public lecture
    more...
  • Mars: Windows on the World
    In their explorations of Mars, both the Spirit and Opportunity rovers found evidence that liquid water was once on the planet's surface. Joy Crisp, project scientist for NASA's Mars Exploration Rovers, discussed the rovers' long journey and their surprising discoveries at a public lecture
    more...
  • The Bluster on Mars
    The tiny tornadoes, or dust devils, that scientists have observed from orbit have now been seen close up on the surface by the Spirit rover. The most recent series of images show that these tornadoes can appear suddenly with diameters in the hundreds of feet.
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  • Details in the Debris
    NASA's Mars rover Opportunity is trying to escape from a sand trap, while its twin, Spirit, has been busy finding new clues to a wet and violent early Martian history.
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  • Bullet-Proof, Kevlar Boom
    European flight controllers have successfully completed the deployment of the first boom of the MARSIS radar on board ESA's Mars Express spacecraft. The Mars Express Sub-Surface Sounding Radar Altimeter (MARSIS) experiment is to map the Martian sub-surface structure to a depth of a few kilometers.
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  • Jumping Genes and the Red Planet
    A geologist from Washington University in St. Louis is developing new techniques to render a more coherent story of how primitive life arose and diverged on Earth - with implications for Mars. The task relies on phylogenetic trees, or ancestral DNA trees.
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  • Opportunity’s Spinning Wheel
    Mars rover engineers are using a testing laboratory to simulate specific Mars surface conditions where NASA's rover Opportunity has spun its wheels in a small dune. Careful testing is preceding any commands for Opportunity to resume moving to get out of the dune and continue
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  • Boom, Temporary Bust
    The deployment of the second antenna boom of the Mars Express Sub-Surface Sounding Radar Altimeter (MARSIS)science experiment has been delayed pending investigation of an anomaly found during deployment of the first antenna boom.
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  • Hints of Habitability
    Bernard Foing, Chief Scientist for the European Space Agency, provides an overview of the most notable discoveries made during the Mars Express mission, Europe's first trip to the Red Planet. In part two of this overview, Foing looks at how these discoveries could help pinpoint
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  • Big Iron to Mars
    A large spacecraft destined to be Earth's next robotic emissary to Mars has completed the first leg of its journey, a cargo-plane ride from Colorado to Florida in preparation for an August launch. NASA's Mars Reconnaissance Orbiter (MRO) is an important next step in
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  • Wading in Martian Water
    The European Space Agency's Mars Express spacecraft has been orbiting Mars for over a year. While the high resolution images of the planet's many craters, volcanoes, and other features get the most notice, the spacecraft's seven instruments have also gathered large amounts of data about
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