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Don't worry — there's an even better one coming sooner than you think.
It's up in the air as to just how close it'll get.
No, it's not Pluto.
Turns out staring at the Sun can be pretty awesome.
PSO J318.5-22 would not make a great vacation destination.
It's a frightening vision of the distant future — and also pretty awesome.
One Yale astronomer calls the data "unbelievable."
The best photos of the once-in-a-generation phenomenon.