Our solar system completes one orbit around the Milky Way galaxy in approximately 230 million Earth years, meaning one galactic year is significantly longer than the entire time dinosaurs existed on Earth, and Earth has completed fewer than 20 galactic years since its formation.
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🌌 “One Galactic Year = 230 MILLION Earth Years?! 😱”#space #nasa#satellite追加:
What if I told you one year in space lasts longer than dinosaurs existed on Earth? Our solar system races around the Milky Way at over 500,000 miles per hour, and one full orbit takes about 230 million Earth years. The last time we were in this spot of the galaxy, dinosaurs were still alive. So, technically, Earth hasn't even completed 20 galactic years yet.
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