Mars

  • Auroras Common on Mars
    Auroras similar to Earth's Northern Lights appear to be common on Mars, according to physicists at the University of California, Berkeley, who have analyzed six years' worth of data from the Mars Global Surveyor.
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  • Radio Free Mars
    University of Iowa Space Physicist Don Gurnett and his UI colleagues report that a scientific instrument aboard the European Space Agency's (ESA) Mars Express spacecraft is working perfectly and that its data have so far revealed that Mars' ionosphere -- part of the upper atmosphere
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  • Opportunity Tells a Hard Tale
    Life may have had a tough time getting started in the ancient environment that left its mark in the Martian rock layers examined by NASA's Opportunity rover. The most thorough analysis yet of the rover's discoveries reveals the challenges life may have faced in the
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  • Martian Water, Past and Present
    The European Space Agency's Mars Express mission has just been extended, allowing the satellite to continue its investigations of the Red Planet for two more Earth years (or one martian year). Now, two new Mars Express reports help illuminate the role of water on Mars.
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  • Just Keeps Going and Going…
    Spirit, the untiring robotic "wonder child" sent by NASA to explore the eerily earthlike fourth planet from the sun, has completed one martian year--that's almost two Earth years--on Mars. Designed to last only 90 martian days (sols), the six-wheeled marvel the size of a golf
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  • Dust Storm in Opposition
    NASA's Hubble Space Telescope snapped this picture of Mars on October 28, within a day of its closest approach to Earth on the night of October 29. Hubble astronomers were also excited to have captured a regional dust storm on Mars that has been growing
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  • Desert Hopping for Methane
    Evidence of methane-producing organisms can be found in inhospitable soil environments much like those found on the surface of Mars, according to experiments undertaken by scientists and students from the Keck School of Medicine of the University of Southern California and the University of Arkansas
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  • Spirit’s Trail
    Before moving on to explore more of Mars, NASA's Mars Exploration Rover Spirit looked back at the long and winding trail of twin wheel tracks the rover created to get to the top of "Husband Hill." Spirit spent several days in October 2005 at this
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  • Magnetic Mars
    NASA scientists have discovered additional evidence that Mars once underwent plate tectonics, slow movement of the planet's crust, like the present-day Earth. A new map of Mars' magnetic field made by the Mars Global Surveyor spacecraft reveals a world whose history was shaped by great
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  • The Changing Face of Mars
    New high-resolution images of mid-latitude Mars are revealing glacier-formed landscapes far from the Martian poles, says a leading Mars researcher. Conspicuous trains of debris in valleys, arcs of debris on steep slopes and other features far from the polar ice caps bear striking similarities to
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  • Life in Ice
    "We tested equipment that we are developing to look for life on Mars and discovered a rare and complex microbial community living in blue ice vents inside a frozen volcano," remarked Hans E.F. Amundsen of Physics of Geological Processes at the University of Oslo, Norway,
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  • Ballooning on Mars
    Mars rovers, Spirit and Opportunity, have, by now, spent almost two years on the surface of Mars. They traveled several miles each, frequently stopping and analyzing scientific targets with their cameras, spectrometers and other instruments to uncover evidence of liquid water on Mars in the
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  • Desert RATS Test Robotic Rover
    Earlier this month, a group of scientists and engineers converged in the Arizona desert near Meteor Crater to "practice" for future human missions to the moon and Mars. This year's experiments focused on interaction between space-suited "astronauts" and a very sophisticated rover named SCOUT.
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  • Deciphering Mars: The Future
    At the recent Earth System Processes II conference, Dr. Jack Farmer of Arizona State University gave a talk on the current state of understanding about Mars: what we know and what we'd like to know. In this, the third and final part of a three-part
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  • Changing Face of Mars
    New gullies that did not exist in mid-2002 have appeared on a Martian sand dune. That's just one of the surprising discoveries that have resulted from the extended life of NASA's Mars Global Surveyor, which this month began its ninth year in orbit around Mars.
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