K2 Observes Neptune in a Dance with Its Moons

NASA’s Kepler spacecraft, known for its planet-hunting prowess of other stars, is also studying solar system objects. In its new K2 mission, Neptune and two of its moons, Triton and Nereid, have been imaged. The movie illustrates 70 days of uninterrupted observation making this one of the longer continuous studies of an outer solar system object. The movie, based on 101,580 images taken from November 2014 through January 2015 during K2’s Campaign 3, reveals the perpetual clockwork of our solar system. The