Mars experienced two powerful marsquakes

NASA's marsquake-hunting lander has detected its two largest seismic events to date, reports Scott Dutfield for Space, thanks to the most sensitive siesmometer ever designed.

"Not only are they the largest and most distant events by a considerable margin, [the event dubbed] S1000a has a spectrum and duration unlike any other event previously observed," lead author Anna Horleston, a seismologist at the University of Bristol in the U.K.,