25/06/2014

Rover under-ice prototype may lead to Europa search

(Phys.org) —Scientists at NASA's Jet Propulsion Laboratory (JPL) have been working on a device that may one day explore the underside of ice on Europa, Jupiter's moon. NASA completed an early prototype of the rover it hopes ...

Pope has most clout on Twitter

Pope Francis has by far the most clout of any world leader on Twitter because he is so widely retweeted, a study of political use of the social network showed on Wednesday.

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