Earth's night sky is headed for the ultimate cosmic makeover.
Right now, the Andromeda galaxy is rushing toward us at a staggering speed of 250,000 mph (400,000 km/h). In about 4 billion years, it will collide with the Milky Way. But here is the craziest part: because space is so empty, almost zero stars will actually hit each other. Instead, it will be a slow, beautiful dance that completely reshapes our night sky forever! ✨
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