20/04/2017

Chesapeake Bay pollution extends to early 19th century

Humans began measurably and negatively impacting water quality in the Chesapeake Bay in the first half of the 19th century, according to a study of eastern oysters by researchers at The University of Alabama.

NASA's Mars rover Opportunity leaves 'Tribulation'

NASA's senior Mars rover, Opportunity, is departing "Cape Tribulation," a crater-rim segment it has explored since late 2014, southbound for its next destination, "Perseverance Valley."

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