Moon rock: Apollo 17 rock sample hints lunar surface cooled faster than we thought
A rock sample collected from the moon during the Apollo 17 mission in 1972 has been re-examined, and the results suggest the lunar surface might have cooled in just 20 million years Space 14 December 2021 By Chen Ly NASA image of Troctolite 76535 NASA/Johnson Space Center A rock collected from the moon during the … Read more