Saturn's moon Rhea has a mysterious material on its surface — Hydrazine, an inorganic compound, a colorless liquid with the same pungent smell as ammonia. Here on Earth, it is used in pharmaceuticals, agrochemicals, and as a propellant for spacecraft.
New crew arrives in Hawaii for mock Mars mission — Commander's report: sol 2
Photographer Takes Once-In-Lifetime Shot Of The Moon Dressed As Saturn
