Shining like an excellent beacon amidst a sea of galaxies, Arp 220 lights up the evening sky on this view from NASA’s James Webb Area Telescope. Truly two spiral galaxies within the means of merging, Arp 220 glows brightest in infrared gentle, making it a perfect goal for Webb. It’s an ultra-luminous infrared galaxy (ULIRG) with a luminosity of greater than a trillion suns. Compared, our Milky Means galaxy has a way more modest luminosity of about ten billion suns.