The complex MMX mission aims to shed light on the origins of Mars' two tiny moons, Phobos and Deimos, bringing Phobos material back to Earth in 2031.
Imagine a world where the Sun never rises and never sets! It feels like that here in the UK sometimes with what feels like a never-ending cover of cloud. On one side of a world like this, a permanent blazing day whilst on the other, an endless frozen night. No seasons, no dawn, no dusk just an eternal, pitiless divide. For more than three quarters of the stars in our Galaxy, this is the reality facing their planets. And now, for the first time, astronomers have mapped the climate of two such worlds in extraordinary detail.

