Data from NASA's GRAIL mission reveals evidence of ancient volcanic heat still influencing the moon's internal structure.
Volcanoes shaped the moon from the inside out, scientists find: 'Our team was genuinely puzzled'
Source: space
Source Link: https://www.space.com/astronomy/moon/volcanoes-shaped-the-moon-from-the-inside-out-scientists-find-our-team-was-genuinely-puzzled