Where’s Tyche, the 10th 9th planet? Getting the full story: Two weeks ago, the Internet was abuzz about a newly discovered planet named Tyche, supposedly lying in the outer fringe of our own solar system. Ars gets to the bottom of the story with a no-frills-added review of the original research article. In short: no, we have not discovered a new planet—at least, not yet.

If climate scientists are in it for the money, they’re doing it wrong: Ars takes a look at the accusations that climate scientists push the consensus view because of financial self-interest.

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Week in science: where’s Tyche edition?