The solar system moves through interstellar space at a speed of 805,000 kilometers per hour.
Even at this speed, it takes 250 million Earth years to circle the Milky Way.
The last time our 4.5 billion-year-old planet was in the same position in the Milky Way, all five continents were still touching, dinosaurs had just appeared, mammals had yet to evolve, and the world's greatest extinction mass of our planet's history was falling into place.
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