European Space Agency

Milky Way and Andromeda Collision: From Cosmic Certainty to a 50/50 Gamble For decades, astronomers projected a spectacular galactic event: the Milky Way and Andromeda collision. This merger was once considered a near-certainty, expected to occur in about 5 billion years, resulting in a colossal supergalaxy informally dubbed “Milkomeda.” However, thanks to new data and … Read more