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Science & Technology

Cometary dust 'painted' Mercury?

NASA photo
Scientists have long wondered why Mercury was so much darker than Earth�s moon, reflecting just one-third the light that the moon reflects. Show/Hide caption

NASA photo Scientists have long wondered why Mercury was so much darker than Earth�s moon, reflecting just one-third the light that the moon reflects. - Bloomberg THE WASHINGTON POST

3:00 AM 0

The mystery of Mercury's excessively dark surface may be solved.

A team of researchers at Brown University, who published their findings in Nature Geoscience, say the planet's inky appearance may stem from cometary dust that "painted" the planet black over billions ......

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