For years, astronomers believed the Milky Way and Andromeda were on a direct collision course in about 4.5 billion years. But new research using data from our Gaia mission and Hubble Space Telescope suggests the story isn’t so simple.
After running 100 000 simulations with the most precise data available, scientists now say there’s only a 50% chance the two galaxies will collide in the next 10 billion years.
The Large Magellanic Cloud, one of our satellite galaxies, could be tugging the Milky Way just enough to steer it away from Andromeda. Instead of crashing, the two galaxies might simply orbit each other in a slow cosmic dance.
So the fate of the Milky Way remains uncertain. And with the Sun expected to make Earth uninhabitable in about a billion years, a galaxy collision is low on our list of concerns.
📹 European Space Agency (ESA)
📸 NASA, ESA, STScI, Till Sawala (University of Helsinki), DSS, J. DePasquale (STScI)
#ESA #Space #Science
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