A Psychedelic Gravity Map of the Moon’s Surface The map was made with data from NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission, which flew two twin probes around the moon in 2012. The washing machine-sized spacecraft orb
Gallium- It has a melting temperature of about 85 degrees Fahrenheit, which is basically room temperature. If you hold this metal it will begin to melt in your hand.