Hubble Sees Weird Galactic Quartet

This beautiful image from the Wide Field Planetary Camera 2 aboard the NASA/ESA Hubble Space Telescope shows four (NGC 839, NGC 838, NGC 835, and NGC 833) of the seven galaxies that make up a compact group of galaxies known as the Hickson Compact Group 16. Compact galactic groups represent some of the densest concentrations [...] —> Read More