SpaceDancing rainbows reveal Kepler's exoplanet families A dizzying display shows all 3538 known and candidate exoplanets in multi-planet systems that NASA's planet-hunting space telescope has discovered so far Regulars
SpaceAstrophile: Lost moon Naiad swims back into view The small moon of Neptune has been found after 24 years, and its erratic behaviour hints that the planet's entire family may be headed for rocky times 51¶¯Âþ