Japan’s MMX space mission probes how Mars got its moons

The Earth got its Moon when a small planet collided with our planet more than four billion years ago. This impact hurled molten rock into space, which eventually coalesced to form the satellite we can see every night from across our planet. But what of our neighbor, Mars? The Red Planet has two small, irregularly […] The post Japan’s MMX space mission probes how Mars got its moons appeared first o