Andromeda and Milky Way Might Collide Sooner Than We Think

The merger of the Milky Way and Andromeda galaxy won’t happen for another 4 billion years, but the recent discovery of a massive halo of hot gas around Andromeda may mean our galaxies are already touching.(…)Read the rest of Andromeda and Milky Way Might Collide Sooner Than We Think (740 words) © Bob King for Universe Today, […]