*The Perseverance rover catches the Martian moon Phobos covering up the Earth. The tiny +12th magnitude Martian moons Phobos and Deimos are a tough catch from Earth, though it's just possible to nab them during opposition season. Moving at a degree per minute the equivalent of two Full Moons, Phobos would cover lots of sky real estate daily. These allow researchers to refine the known orbits of the Martian moons in order to better understand how they evolve over time. First up is the Japan Aerospace eXploration Agency’s Mars Moon Explorer MMX, which may launch as early as the end of 2026.