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River Networks on Saturn's Largest Moon, Titan, Point to a Puzzling Geologic History
July 20, 2012 — New findings suggest the surface of Saturn's largest moon may have undergone a recent transformation. For many years, Titan's thick, methane- and nitrogen-rich atmosphere kept astronomers from seeing ... > full story -
Asteroid Strikes Cause the Moon's Surface to Smooth
July 16, 2012 — The lunar surface is marred by impact craters, remnants of the collisions that have occurred over the past 4.5 billion years. The Orientale basin, the Moon's most recently formed sizeable crater, ... > full story -
Solar System Ice: Source of Earth's Water
July 12, 2012 — Scientists have long believed that comets and, or a type of very primitive meteorite were the sources of early Earth's volatile elements. Understanding where these volatiles came from is crucial for ... > full story -
Evidence of Life on Mars Could Come from Martian Moon Phobos
June 29, 2012 — A mission to a Martian moon could return with alien life, according to experts, but don't expect the invasion scenario presented by summer blockbusters like "Men in Black 3" or "Prometheus." A sample ... > full story -
Earth's Oldest Known Impact Crater Found in Greenland
June 28, 2012 — Scientists in working in Western Greenland have found evidence of an asteroid or comet impact early in the Earth's history. At three billion years old, the crater is a billion years older than the ... > full story -
Scientists Find New Primitive Mineral in Meteorite
June 26, 2012 — In 1969, an exploding fireball tore through the sky over Mexico, scattering thousands of pieces of meteorite across the state of Chihuahua. More than 40 years later, the Allende meteorite is still ... > full story -
Could Mars Have Sustained Life? Extensive Water in Mars' Interior
June 21, 2012 — Until now, Earth was the only planet known to have vast reservoirs of water in its interior. Scientists analyzed the water content of two Martian meteorites and found that the amount of water in ... > full story -
Researchers Estimate Ice Content of Crater at Moon's South Pole
June 20, 2012 — NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft has returned data that indicate ice may make up as much as 22 percent of the surface material in a crater located on the moon's south pole. The ... > full story -
Asteroids, Comets and Meteors
Near-Earth Object Impacts
NASA
Space Exploration
Space Missions
Earth Science
No Earth Impact in 2040: NASA Releases Workshop Data and Findings on Asteroid 2011 AG5
June 15, 2012 — Researchers anticipate that asteroid 2011 AG5, discovered in January 2011, will fly safely past and not impact Earth in 2040. Observations to date indicate there is a slight chance that AG5 could ... > full story -
Nanoparticles Found in Moon Glass Bubbles Explain Weird Lunar Soil Behavior
June 13, 2012 — Using synchrotron-based nano tomography, scientists have found a highly porous network of alien-looking glassy particles inside unbroken bubbles of glass in a sample of lunar ... > full story
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