The bigger galaxy, known as 2MASX J17222717+3207571, is 75 times more massive than the Milky Way, and it is the brightest amid a large cluster of galaxies in the direction of the Hercules Constellation. The smaller galaxy with the smaller core, known as 2MASX J09194427+5622012, is about 30 times the mass of the Milky Way and is near the Ursa Major constellation. Both galaxies are roughly 4 billion light years away.
This image, taken with the Wide Field Planetary Camera 2 on board the NASA/ESA Hubble Space Telescope, shows the galaxy NGC 6052, located around 230 million light-years away in the constellation of Hercules. It would be reasonable to think of this as a single abnormal galaxy, and it was originally classified as such. However, it is in fact a “new” galaxy in the process of forming. Two separate galaxies have been gradually drawn together, attracted by gravity, and have collided.