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Water in the Solar System: Water, Water, Everywhere!
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15 Jan 2013 Curiosity Update, Sol 157: Glenelg Isn't Just a Test Site Anymore; It's a Scientific "Candy Store"
The rock at Glenelg turns out to be a sequence of diverse sedimentary rocks that seem to have been deposited by liquid water, then turned into rock, which was, some time later, saturated again with liquid water, leaving concretions and gypsum veins in their wake. Water, water, everywhere, and at multiple times in history, in multiple depositional environments! It's exactly the kind of stuff Curiosity was sent to Mars to study.
8 Dec 2012 Ancient Caverns on Mars May Have Captured Floodwaters
An international research team led by the Planetary Science Institute has found evidence that indicates that approximately 2 billion years ago enormous volumes of catastrophic flood discharges may have been captured by extensive systems of caverns on Mars.
27 Sep 2012 Curiosity Finds Old Streambed on Mars
NASA's Curiosity rover mission has found evidence a stream once ran vigorously across the area on Mars where the rover is driving. There is earlier evidence for the presence of water on Mars, but this evidence -- images of rocks containing ancient streambed gravels -- is the first of its kind.
26 Sep 2012 Vesta Got Special Delivery of Hydrated Minerals
Observations of the giant asteroid Vesta by NASA's Dawn mission suggest that hydrated materials were delivered to it mainly through a buildup of small particles during an epoch when the solar system was rich in dust. This is a radically different process from the way hydrated materials have been deposited on the moon and may have implications for the formation of terrestrial planets, including the delivery of the water that formed Earth's ocean.
20 Sep 2012 NASA Dawn Spacecraft Sees Hydrated Minerals on Giant Asteroid
Pothole-like features mark some of Vesta's surface where volatiles (easily evaporated materials), likely water, released from hydrated minerals boiled off. While Dawn did not find actual water ice at Vesta, there are signs of hydrated minerals delivered by meteorites and dust evident in the giant asteroid's chemistry and geology.
14 Sep 2012 NASA Mars Rover Opportunity Reveals Geological Mystery
NASA's long-lived Mars rover Opportunity has returned an image of the Martian surface that is puzzling researchers. Spherical objects concentrated at an outcrop Opportunity reached last week differ in several ways from iron-rich spherules nicknamed "blueberries" the rover found at its landing site in early 2004 and at many other locations to date. Opportunity is investigating an outcrop called Kirkwood in the Cape York segment of the western rim of Endeavour Crater. The spheres measure as much as one-eighth of an inch (3 millimeters) in diameter. The analysis is still preliminary, but it indicates that these spheres do not have the high iron content of Martian blueberries.
28 Jun 2012 Titan's Underground Ocean
Data from NASA's Cassini spacecraft have revealed Saturn's moon Titan likely harbors a layer of liquid water under its ice shell.
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Last Updated: 18 Mar 2014