What's a Marsquake?

On April 23rd, NASA InSight scientists announced they had detected a small seismic event on Mars, aptly referred to as a marsquake. This event, the first of its kind ever detected, promises to bring revolutionary insights about planetary interiors and seismic activity on other worlds."InSight's first readings carry on the science that began with NASA's Apollo missions," said InSight Principal Investigator Bruce Banerdt at the Jet Propulsion Laboratory in Pasadena, California. "We've been collect...