Here's one of the cool things you learn when you land a seismometer on another planet: Mars's days are getting shorter. Or to put it another way, the planet is spinning faster. That was discovered ...

Thanks to its InSight lander, NASA has been able to learn a lot about the mysterious planet of Mars over the past five years. But the agency’s latest findings seem to raise more questions than they ...

(Phys.org) —Exceptional structures deposited and shaped by water and winds adorn these interlocking craters and sculpt radiating patterns in the sands of Mars. On Mars's poles there are ice caps of ...