#Moonquakes and marsquakes: How we peer inside other worlds
“#Moonquakes and marsquakes: How we peer inside other worlds” The first seismometer on the moon, with solar panels and an antenna pointed at Earth, was placed there by Apollo 11 astronauts and tested by Buzz Aldrin stamping his foot. Credit: NASA Eavesdropping on the shudders and groans echoing deep inside alien worlds like Mars and…