Galaxy collisions are the ultimate in slow-motion stunts. ⏱️ When a pair of galaxies encounters each other, it takes 1-2 billion years for them to merge and settle down. The stars already in the galaxies don’t change much, but the collision can spark lots of new stars to form! ✨
Astronomers study the giant elliptical galaxy M87, in part due to its jet that extends nearly 5,000 light-years from its center. This video zooms in on M87 with visible, X-ray and radio images, ending on the
@ehtelescope image that was released one year ago today.