The disk of our home galaxy - the Milky Way - is bigger than previously thought. A new study shows it would take 200,000 years for a spaceship traveling at the speed of light to go across the entire galaxy.
The disk of our home galaxy - the Milky Way - is bigger than previously thought. A new study shows it would take 200,000 years for a spaceship traveling at the speed of light to go across the entire galaxy.
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