About those moons…

“The issue of the origins of Phobos and Deimos is a fun sort of mystery, because we have two competing hypotheses that cannot both be true,” Fries said.

Martian Moon Phobos May Have Formed From Impact With Home Planet

The weird shapes and colors of the tiny Martian moons Phobos and Deimos have inspired a long-standing debate about their origins.

SciTechDaily