Friday, Dec 14, 2018
NASA's Cassini spacecraft spied this tight trio of craters as

NASA’s Cassini spacecraft spied this tight trio of craters as

NASA’s Cassini spacecraft spied this tight trio of craters as it approached Saturn’s icy moon Enceladus for a close flyby in this image captured Oct. 14, 2015. NASA/JPL-Caltech/Space Science Institute/Handout via REUTERS