mrt 302013
Saturn's Moons and Rings are like Gently Worn Vintage Goods

  A new analysis of data from NASA’s Cassini spacecraft suggests that Saturn’s moons and rings are gently worn vintage goods from around the time of our Solar System’s birth. Saturn, the second largest planet in the Solar System, has a prominent ring system and at least 62 moons. This does not include the hundreds of [continue reading]

nov 302012
Evidence for Water Ice and Organic Compounds on Mercury!

  A NASA spacecraft studying Mercury has provided compelling support for the long-held hypothesis the planet harbors abundant water ice and other frozen volatiles within its permanently shadowed polar craters. Mercury’s North Polar Region Acquired By The Arecibo Observatory. Image Credit: National Astronomy and Ionosphere Center, Arecibo Observatory  The new information comes from NASA’s MErcury [continue reading]

nov 012012
More Clues to Mars’ Wet Past

  On 6 June, the high-resolution stereo camera on ESA’s Mars Express revisited the Argyre basin, this time aiming at Nereidum Montes, some 380 km northeast of Hooke crater. The stunning rugged terrain of Nereidum Montes marks the far northern extent of Argyre, one of the largest impact basins on Mars. This computer-generated perspective view was [continue reading]

sep 212012
Dawn Sees Hydrated Minerals on Asteroid Vesta (with Video)

  Volatiles, or easily evaporated materials, have colored Vesta’s surface in a broad swath around its equator. This has been reported in two new papers based on observations from the low-altitude mapping orbit of the Dawn mission.  Asteroid Vesta. Image Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA Pothole-like features mark some of the asteroid’s surface where the volatiles, likely water, released [continue reading]