Space
NASAAugust 19, 20261 min readAbout 12 billion years ago, a dwarf galaxy known as LKH collided with a young Milky Way and merged with it. This artist’s concept portrays that collision. NASA’s Hubble Space Telescope uncovered definitive evidence of this collision by studying globular star clusters.
NASA, ESA, Joseph Olmsted (STScI) This artist’s concept , released on Aug. 17, 2026, depicts a collision between our Milky Way galaxy and a dwarf galaxy known as LKH that happened about 12 billion years ago. A study of data from NASA’s Hubble Space Telescope , recently published in the journal Nature Astronomy , shows definitive evidence of a dwarf galaxy merging with the young Milky Way galaxy in the earliest phases of its evolution.
8 billion years further back in time than before. Read about this discovery.
NASA
nasa.gov