1st-ever close-up photo of Mars' moon Deimos reveals the Red Planet's violent past

A satellite from the United Arab Emirates revealed that Mars' moon Deimos is made of the same material as the Red Planet itself, hinting at an ancient collision.
The United Arab Emirates' Martian orbiter Hope just provided a striking new view of Deimos, one of Mars' two small moons. According to findings presented at the European Geosciences Union(opens in new tab) meeting this week, the observations from a flyby on March 10 indicate that Deimos is made of the same materials as Mars itself — suggesting the moon formed at the same time as Mars, and isn’t a captured asteroid, as some theories have proposed.