Blue-white arcs among the yellow galaxies are lensed images of background objects seen within gravity’s lens. Not every example of lensing in the cosmos is gravitational, of course.

This is far from the largest galaxy to be discovered, the honor of which goes to IC 1101, which is 50 times the size of our Milky Way at 5.5 million light-years across.Still, it's on the large end ...