Moon Undergoing Subsurface Sparking (IMAGE)

NASA/Goddard Space Flight Center

Moon Undergoing Subsurface Sparking

Caption

This illustration shows a permanently shadowed region of the moon undergoing subsurface sparking (the 'lightning bolts'), which ejects vaporized material (the 'clouds') from the surface. Subsurface sparking occurs at a depth of about one millimeter. Image not to scale.

Credit

Andrew Jordan/UNH

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