Australian researchers have found that Andromeda, our neighbouring large galaxy, has a history of eating galaxies going back 10 billion years.

International research published on Thursday, which was co-led by Australian National University (ANU) and the University of Sydney, found that Andromeda, which is on a collision course with the Milky Way, has a cannibalistic history, reported Xinhua news agency.

NEWS SOURCE :- Gadgets 360: Andromeda Galaxy, on Collision Course With the Milky Way, Has a Cannibalistic History: Researchers.
https://gadgets.ndtv.com/science/news/andromeda-galaxy-on-collision-course-with-the-milky-way-has-a-cannibalistic-history-researchers-2111268?publisher=newsstand