SPLASH ZONE A periodically plunging planet causes these spiral waves in the belt of debris surrounding the star Beta Pictoris, as seen in this computer simulation.
NASA Goddard Scientific Visualization Studio
Pluto and Charon show off two of their sides in pictures taken by the New Horizons spacecraft. Each of the dark spots on Pluto (orange, right) is roughly the size of Missouri.
NASA, JHUAPL, SWRI
MAGNETISM UNVEILED Hot gas in the sun’s atmosphere flows along magnetic field lines (pale streaks) that puncture the surface. Sunspots with opposing magnetic polarity are blue and yellow in this false-color image.