Browse Archive
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MRO Sees Ice on Mars Exposed by Meteor Impacts
NASA's Mars Reconnaissance Orbiter has revealed frozen water hiding just below the surface of mid-latitude Mars.
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Radar Map of Buried Mars Layers Matches Climate Cycles
New, three-dimensional imaging of Martian north-polar ice layers by a radar instrument on NASA's Mars Reconnaissance Orbiter is consistent with theoretical models of Martian climate swings during the past few million years.
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Cassini Reveals New Ring Quirks, Shadows
NASA scientists are marveling over the extent of ruffles and dust clouds revealed in the rings of Saturn during the planet's equinox last month.
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EVE: Measuring the Sun's Hidden Variability
To monitor energetic solar photons, NASA is going to launch a sensor named "EVE," short for EUV Variability Experiment, onboard SDO this winter.
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A 'Whole New Way of Seeing the Moon'
Temperature maps of the moon from the Diviner instrument on NASA's Lunar Reconnaissance Orbiter give scientists a chill.
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Asteroid Juno Grabs the Spotlight
Toward the end of September, the sun will turn a spotlight on the asteroid Juno, giving that bulky lump of rock a rare featured cameo in the night sky.
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Saturn's Turbulent 'Storm Alley' Sets Another Record
The longest continuously observed thunderstorm in the solar system has been roiling Saturn's atmosphere since mid-January and is still churning now, according to a presentation by a Cassini team scientist at the European Planetary Science Congress in Potsdam, Germany.
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Scientists Discover New Radiation Belt at Saturn
Scientists using the Cassini spacecraft's Magnetospheric Imaging instrument have detected a new, temporary radiation belt at Saturn, located around the orbit of its moon Dione at about 377,000 kilometers (234,000 miles) from the center of the planet.
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Free Spirit: Computer Modeling and Dusty Testing
Tests on Earth simulating Spirit's predicament on Mars have reinforced understanding that getting Spirit to rove again will be very difficult.
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Preventive Care Continues; Science on Hold
During analysis of four safe-mode events this year, engineers for NASA's Mars Reconnaissance Orbiter project have identified a vulnerability to the effects of subsequent events.