This near-infrared, color view from Cassini shows the sun glinting off of Titan’s north polar seas. Credits: NASA/JPL-Caltech/Univ. Arizona/Univ. Idaho On its final flyby of Saturn’s largest moon in 2017, NASA’s Cassini spacecraft gathered radar data revealing that the small liquid lakes in Titan’s northern hemisphere are surprisingly deep, perched atop hills […]

Massive blasts of plasma can launch forth when the sun’s magnetic field lines tangle, break and recombine. Credit: NASA/GSFC/Solar Dynamics Observatory The sun’s corona constantly breathes wispy strings of hot, charged particles into space — a phenomenon we call the solar wind. Every now and then, however, those breaths become full-blown […]