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TIL that the surface gravities of Venus, Saturn, Uranus, and Neptune are all quite similar (within 15%) to Earth’s. Thus, the majority of planets in our solar system actually have Earth-like surface gravity.

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OR1 TIL for the episodes through June 2012 the Mythbusters have destroyed 146 vehicles, used 33,500 yards of duct tape, and blown up 13.5 tons of explosives.
4kMw5 TIL that evidence of slavery predates written records; the practice has existed in many cultures and can be traced back 11,000 years ago due to the conditions created by the invention of agriculture during the Neolithic Revolution.
ADkxx TIL Facebook acquired Onavo VPN to track user's full online activity and app usage details. With this, they could tell Instagram's Stories crippled Snapchat Stories even before Snap made it public.
1aN9d TIL that female journalist Gao Yu was imprisoned for 5 years by the Communist Party of China for leaking "Document No. 9" which bans university professors from teaching democratic ideals such as Basic Human Rights. Failure to comply results in suppression, blacklisting, and imprisonment.
ADxMd TIL The number of students caught cheating at the UK's top universities (including Oxford and Cambridge) increased by a third in three years. There was a surge in cases of academic misconduct.