... Cassini Images The Moon . ... On August 18, the Cassini spacecraft flew by the Earth and Moon, then continued on its way to the outer solar system. ... Four years ago, Comet Hale-Bopp was discovered out near Jupiter falling toward the inner Solar System. ... In astronomical parlance, an interior planet is at superior conjunction when it is located on the opposite side of the Sun from Earth. ... Water Found in Space Rock . ... It's only Planet Earth, of course ... as seen on the Water Vapor Channel. ...