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TIL that it cost NASA more than $50 million to fix a 2-micron deviation in the Hubble's primary mirror to develop COSTAR, which basically acted as "glasses" for the telescope

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yQxk8 TIL that Jim Coleman, a sportswriter made up the 'curse of Muldoon' to meet an editorial deadline. The curse supposedly prevented the Chicago Black Hawks of the National Hockey League from finishing in first place from 1938 to 1967.
MeA70 TIL that a cafe in Japan is hiring paralysed people to to control robot servers in order to still make an income.
Dd8V TIL The US Air Force seeded clouds to extend the monsoon season over the Ho Chi Minh trail in Vietnam between 1967 and 72. This lead to a 1977 international treaty outlawing weather warfare.
5VDYn TIL that there is a type of frog you can partially see through. It is called the Glass frog.
Vyy4 TIL The first TV remote controls were called “clickers” and did not use batteries, they transmitted an ultrasound when the user clicked the button, striking a metal rod inside to send an audible signal to the TV