#space #nasa
Full Explanation: https://t.co/1ualAh4yPE
(Excerpt): Why is Phobos so dark? Phobos, the largest and innermost of the two Martian moons, is the darkest moon in the entire Solar System. Its unusual orbit and color indicate that it may be a captured asteroid composed… https://t.co/dlvu6pYIKa
Full Explanation
