How We Found Earth's Location in the Milky Way

Where exactly are we in the Milky Way? This video maps our true cosmic address with Gaia data—central bar, spiral arms, dark-matter halo, and the Orion Arm where the Solar System lives—and explains why our spot may be ideal for life (the galactic habitable zone). We also touch on our 225-million-year “galactic year” and the future Milky Way–Andromeda collision.
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