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TIL On May 19, 1983, Diane Downs shot her three children and drove them at 5-7 mph to the hospital. Her 7 yr old daughter was already dead, her other 2 children were in critical condition. She'd also shot herself in the forearm. She claimed she'd been carjacked. She was sentenced to life plus 50 yrs

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DplV TIL that The ruins of the ancient city of Petra lay hidden until 1812, when a Swiss explorer stumbled upon them in modern-day Jordan. The man walked through the dark gorge for 1.2 kilometers. Suddenly, he laid eyes on a magnificent scene.
7rwEx TIL we don't really have a clear understanding of how the Moon formed. There are theories ranging from a planetary collision billions of years ago, to a multitude of smaller collisions resulting in enough mass for it to form. But even then, our moon behaves differently than others in our galaxy.
Zp0v4 TIL of Steganography, a field similar to cryptography, but that involves concealing a message rather than encoding it. For example, hiding an image in audio, or even hiding one image in the data of another. A famous example, a POW in Vietnam blinked TORTURE in morse code during a newscast.
Me7DB On July 14th, the New Horizons spacecraft will make history when it sails past Pluto, formerly known as the ninth planet. Even more incredible is how fast we got there. The spacecraft traveled 3 billion miles in nine and a half years. That’s about a million miles a day for almost ten years. How the heck did we do it?
OoxXY TIL that there is a law called Godwin's law saying that if an online discussion (regardless of topic or scope) goes on long enough, sooner or later someone will compare someone or something to Adolf Hitler or his deeds, the point at which effectively the discussion or thread often ends.