An curved arrow pointing right. Watch this animation for 15 seconds, then watch a still picture of the Antennae Galaxies taken by the Hubble Space Telescope, and it'll look like it's moving.

Three Alma antennas on the 5km altitude plateau of Chajnantor in Chile. wikipedia, CC BY-SA Our study examined the distribution of dust in more than 100 distant galaxies, which we know were ...