Mercury Painted Black By 'Invisible Paint': Here's What Happened

March 30, 2015 10:53 PM

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Mercury is far darker than traditional planetary models would suggest. Now, a team of astronomers thinks they know why that may be.(Photo : NASA Goddard Space Flight Center | Flickr)

Mercury has been covered with a thin layer of black dust from billions of years of deposits from comets passing through the orbit of the innermost planet of the solar system, according to a new study.

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