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TIL the TRAPPIST-1 system hosts 7 identified exoplanets and 3 of them (TRAPPIST-1e, TRAPPIST-f, TRAPPIST-g) are Earth-sized and within the solar system's habitable zone

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e66k TIL Hackers made a “sniper rifle” that can hack bluetooths from over a mile away.
KOl56 TIL that Cards Against Humanity joked about how they could have bought a small private island with the money they donated to charity. So in 2014 they did, renaming it “Hawaii 2”
KOmva TIL sharks are called "swimming noses" because 2/3 of their brains are olfactory lobes. They can smell blood in water at 1 part per million from hundreds of meters away. But their sense of taste isn't linked to their nose and is not as developed, so often they bite once then decide not to kill.
NBaN TIL the Powerpuff Girls was originally a college project done by Craig McCracken known as the “Whoopass Girls”. Instead of Chemical X, the Professor gave them an open “Can of Whoopass”.
l7xnr TIL Mouthbreathing makes your teeth crooked