Examples of merging galaxies containing a heavily obscured growing supermassive black hole observed by the Hubble Space Telescope. The top panels show nearby galaxies at ~500 million light-years from ...

The James Webb Space Telescope has delivered a new kind of galactic portrait, revealing a luminous thread of gas and newborn stars stretching between two small, colliding galaxies. The image turns a ...

A 50-million-light-year-long flow of hydrogen gas has been observed linking two tiny galaxies 50 million light-years away, giving astronomers a spectacular view of how galaxies attract, warp, and ...