The long-held belief that the
Milky Way and
Andromeda galaxies are on an inescapable head-on collision course has recently been challenged, with
new data revealing only a 50/50 chance of a collision occurring within the next 10 billion years. While astronomers previously expected a definitive galactic crash in about
4.5 billion years, advanced computer simulations utilizing data from NASA’s
Hubble Space Telescope and the ESA’s
Gaia Mission indicate that the timeline and final outcome are far more uncertain than once thought.