General / Off-Topic The solar system appears to have a new ninth planet. (No, seriously)

Promising, new evidence. Full Article; Science, Jan. 20, 2016.

The 0.007% chance that the clustering of the six objects is coincidental gives the planet claim a statistical significance of 3.8 sigma—beyond the 3-sigma threshold typically required to be taken seriously, but quite well short of the 5 sigma "forget it" threshold.
 
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