Wow! NASA Rover on Mars Sees Mercury Cross the Sun's Face (Photos, Video)
NASA's Mars rover Curiosity has photographed Mercury crossing the face of the sun, marking the first time such a planetary "transit" has ever been imaged from the surface of a planet other than Earth.
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NEXT: Private Team to Restart Engines on 36-Year-Old NASA Spacecraft
Private Team to Restart Engines on 36-Year-Old NASA Spacecraft
The team has made contact with the spacecraft and is ready to tell it what to do. Interview with Keith Cowing.
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NEXT: 3D Printer Cleared for August Launch to Space Station
3D Printer Cleared for August Launch to Space Station
The team has made contact with the spacecraft and is ready to tell it what to do. Interview with Keith Cowing.
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NEXT: Why the Moon's 'Dark Side' Has No Face
Why the Moon's 'Dark Side' Has No Face
The side of the moon facing away from Earth was long a mystery to scientists. Now researchers find it may lack the large flat seas of volcanic rocks seen on the side of the moon facing toward Earth because of how the moon initially formed.
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NEXT: 'The Beast' Asteroid Seen in Amazing Detail (Photos, Video)
'The Beast' Asteroid Seen in Amazing Detail (Photos, Video)
NASA researchers bounced radio signals off the huge near-Earth asteroid 2014 HQ124, nicknamed "The Beast" by some, as it whizzed by Earth just weeks after it was discovered.
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