Martian moons could be a result of an early collision similar to that of Earth and Theia. This new model proposes an interesting middle way. Rather than an impact or direct capture, the authors propose a near miss by a large asteroid.
Launched 19 July 2020 atop a Japanese H-2A rocket, the Hope probe braked into a highly elliptical orbit around Mars on 9 February 2021. The first such close encounter came in late January.
