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The Space Exploration Achievements Thread

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Honestly, it's more likely that this is just a very distant TNO (like Sedna). I saw a thing by Mike Brown saying that given how narrow the field of view is on the telescope that found this, if it's Earth mass statistically there's probably about 2,000 other ones the same size out there. And I think a brown dwarf would have been found by that IR survey they did a few years ago.

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