A Comet From Another Solar System Is On Its Way - Defector
Solar systems mostly keep to themselves. What’s ours is ours and what’s not is not. Stars are simply too far from each other—four light years and change to our nearest neighbor—and too big and strong to allow things to escape their gravity well. But we know s…
Solar systems mostly keep to themselves. What's ours is ours and what's not is not. Stars are simply too far from each otherfour light years and change to our nearest neighborand too big and strong t… [+6580 chars]
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