Arp 4 is a galactic duo immortalized by the Hubble Space Telescope. In the image, a small bright spiral appears to be orbiting around a larger, darker companion. However, this apparent proximity ...
When you buy through links on our articles, Future and its syndication partners may earn a commission. "Peculiar" spiral galaxy Arp 184 or NGC 1961 as captured by NASA/ESA's Hubble Space Telescope. | ...
What looks like a galactic dance is really a cosmic optical illusion—two galaxies, worlds apart, perfectly aligned by chance.