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Newest NASA Mars Mission Connects Past and Future
August 3, 2012 — NASA's newest Mars mission, landing in three days, will draw on support from missions sent to Mars years ago and will contribute to missions envisioned for future ... > full story -
Fingering the Culprit That Polluted the Solar System
August 2, 2012 — For decades it has been thought that a shock wave from a supernova explosion triggered the formation of our Solar System. The shock wave also injected material from the exploding star into a cloud of ... > full story -
250 Years of Global Warming: Berkeley Earth Releases New Analysis
July 30, 2012 — According to a new Berkeley Earth study released July 29, the average temperature of Earth's land has risen by 1.5 °C over the past 250 years. The good match between the new temperature record ... > full story -
Giant Ice Avalanches on Saturn's Moon Iapetus Provide Clue to Extreme Slippage Elsewhere in the Solar System
July 29, 2012 — Saturn's ice moon Iapetus has more giant landslides than any solar system body other than Mars. Measurements of the avalanches suggest that some mechanism lowered their coefficients of friction so ... > full story -
Magnetic Field, Mantle Convection and Tectonics
July 29, 2012 — On a time scale of tens to hundreds of millions of years, the geomagnetic field may be influenced by currents in the mantle. The frequent polarity reversals of Earth's magnetic field can also be ... > full storyMore: -
Martian Polygons and Deep-Sea Polygons on Earth: More Evidence for Ancient Martian Oceans?
July 27, 2012 — Debate over the origin of large-scale polygons (hundreds of meters to kilometers in diameter) on Mars remains active even after several decades of detailed observations. Similarity in geometric ... > full story -
How Life Turned Left: Meteorite Fragments Help Explain Why Living Things Only Use Molecules With Specific Orientations
July 25, 2012 — Researchers analyzing meteorite fragments that fell on a frozen lake in Canada have developed an explanation for the origin of life's handedness -- why living things only use molecules with specific ... > full story -
Two Solar System Puzzles Solved
July 25, 2012 — How did icy comets obtain particles that formed at high temperatures, and how did the particles acquire rims with different compositions? Scientists have now modeled the trajectories of refractory ... > full story -
Hypersonic Inflatable Heat Shield Successfully Tested
July 23, 2012 — A large inflatable heat shield developed by NASA's Space Technology Program has successfully survived a trip through Earth's atmosphere while traveling at hypersonic speeds up to 7,600 ... > full story -
Solar System
Geology
Asteroids, Comets and Meteors
Near-Earth Object Impacts
Energy and the Environment
Renewable Energy
New Clues to the Early Solar System from Ancient Meteorites
July 22, 2012 — In order to understand Earth's earliest history -- its formation from solar system material into the present-day layering of metal core and mantle, and crust -- scientists look to meteorites. New ... > full story
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