Mars' halcyon times may have been fleeting
Cold and dry today, Mars was previously warm and wet but possibly only at intervals, a study published on Sunday suggests.
Researchers claim Mojave Crater on Mars is source of Mars rocks found on Earth
Curiosity rover stretches its arm for first time
(Phys.org) -- NASA's Mars rover Curiosity flexed its robotic arm today for the first time since before launch in November 2011.
Flowing water on Mars appears likely but hard to prove
(Phys.org) —Martian experts have known since 2011 that mysterious, possibly water-related streaks appear and disappear on the planet's surface. Georgia Institute of Technology Ph.D. candidate Lujendra Ojha ...
Gusev Crater once held a lake after all, Mars scientist says
(Phys.org) —If desert mirages occur on Mars, "Lake Gusev" belongs among them. This come-and-go body of ancient water has come and gone more than once, at least in the eyes of Mars scientists.
First 'directed' SETI search comes up empty
Gravity measurements confirm subsurface ocean on Enceladus
In 2005, NASA's Cassini spacecraft sent pictures back to Earth depicting an icy Saturnian moon spewing water vapor and ice from fractures, known as "tiger stripes," in its frozen surface. It was big news ...
New study proves Moon was created in massive planetary collision
(Phys.org)—It's a big claim, but Washington University in St. Louis planetary scientist Frédéric Moynier says his group has discovered evidence that the Moon was born in a flaming blaze of glory when ...
Research shows collision created Chelyabinsk asteroid
Mars rover Curiosity targets unusual rock enroute to first destination
(Phys.org)—NASA's Mars rover Curiosity has driven up to a football-size rock that will be the first for the rover's arm to examine.
Experiments show disproportionately large number of big boulders on asteroids likely due to Brazil-nut effect
Mercury contracted more than prior estimates, evidence shows
New evidence gathered by NASA's MESSENGER spacecraft at Mercury indicates the planet closest to the sun has shrunk up to 7 kilometers in radius over the past 4 billion years, much more than earlier estimates.
NASA Cassini images may reveal birth of a Saturn moon
(Phys.org) —NASA's Cassini spacecraft has documented the formation of a small icy object within the rings of Saturn that may be a new moon, and may also provide clues to the formation of the planet's known ...
Van Allen Probes spacecraft reveal 'zebra stripe' structure in Earth's inner radiation belt
Scientists have discovered a new, persistent structure in Earth's inner radiation belt using data from the twin NASA Van Allen Probes spacecraft.