Mars’ rotation is speeding up slightly, but enough for scientists to notice. A new study suggests the cause could be a massive plume deep underground, quietly affecting how the planet rotates. The ...

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 ...

Data from Nasa’s InSight Mars lander suggests the Red Planet’s rotation is strangely accelerating every year, leading to a fractional shortening of the length of the Martian day. The research, ...