Thursday, January 23, 2014

NASA ponders mysterious rock on Mars that suddenly appears

A mystery rock on Mars that suddenly appeared in front of NASA's Opportunity rover may look like a tasty donut, but it is like nothing ever seen on the Martian surface before.

This before-and-after pair of images of the same patch of ground in front of NASA's Mars Rover Opportunity 13 days apart documents the arrival of a strange, bright rock at the scene. The rock, called "Pinnacle Island," is seen in the right image on Jan. 8, 2014. The image at left was taken on Dec. 26, 2013.
















"It looks like a jelly donut," said Steve Squyres, the rover's lead scientist at Cornell University in Ithaca, N.Y., during a recent NASA event marking Opportunity's 10th year on Mars. "And it appeared, it just plain appeared, at that spot and we haven't driven over that spot." [Amazing Photos from NASA's Opportunity Mars Rover]

Wednesday, October 2, 2013

Smartest Aliens May Live Around Red Dwarf Stars



Robert Frost’s classic 1923 poem ”Nothing Golden Can Stay” is certainly true for planets that are in the habitable zone — or shall we say the golden zone — around their parent stars.  A planet’s lease on life runs out when the evolving star grows too hot for the world hold onto water for sustaining life as we know it. With increasing stellar luminosity, the habitable zone sweeps outward beyond the planet’s orbital radius, leaving paradise worlds to bake to death as surviving extremophliles burrow underground.  What’s sobering is that Earth has already spent 70 percent of its habitable years inside the sun’s golden zone.  And it took that long for intelligent life to appear on the surface.

See complete article at Discovery.com - click link below........

Smartest Aliens May Live Around Red Dwarf Stars