Will the Milky Way and Andromeda galaxies collide in several billion years? The odds have changed with a new study using 100,000 supercomputer simulations. br br Credit: NASA's Goddard Space Flight Centerbr Paul Morris: Lead Producerbr br Video Credits:br Milky Way Timelapsebr Stock Footage Provided By Pond5lovemushroombr br Artist Rendition of Gaia Spacecraftbr ESAbr br Artist’s animation of the Sun becoming a red giantbr ESAHubble (M. Kornmesser & L. L. Christensen)br br Milky Way and Andromeda Collision Simulationbr Visualization Credit: NASA, ESA, and F. Summers (STScI) Simulation Credit: NASA, ESA, G. Besla (Columbia University), and R.