Mars Rover Curiosity Watches Mercury Transit the Sun

June 11, 2014 4:31 AM

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By now we’ve all realized that NASA’s Mars rover Curiosity is a fine geologist. It’s also a great geochemist. And now, once again, the six-wheeled rover has underlined the fact that it’s also a damned good astronomer.

The rover’s latest astronomical project features the transit of Mercury across the disk of the sun — a cosmological alignment that could only be seen from the red planet. What’s more, this is the first time any planet has been seen transiting the sun from another world and the first ever observation...

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