A deep pocket of hot, low-density material hiding in the Martian mantle may be responsible for gradually speeding up the planet’s spin, according to a peer-reviewed study that connects orbital gravity ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

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 ...