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Goddard Space Flight Center is about to get medieval on some comets Goddard's Comet-Hunting Crossbow NASA/Rob Andreoli In Kepler, NASA has an exoplanet hunter.
In six years of cruising around the planet Saturn and its neighborhood, the Cassini spacecraft has discovered two new Saturn rings, a bunch of new moons and a whole new class of moonlets. It encountered liquid lakes on the moon Titan, water ice and a particle plume on the moon Enceladus, ridges and ripples on the rings, and cyclones at Saturn’s poles. Cassini also released a European space probe that landed on Titan.