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TIL H-Alpha telescopes designed for the Sun shows surface granulation, movement on the Sun, and the prominences coming off the side. White light telescopes with filters can only show spots on the Sun, with very little granulation

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VMvRZ TIL the word "colonel" is pronounced "kernel"because the French wanted to have the "R" sound in the word, instead of the two "L" sounds.
l7GaV TIL that astrophysicist Stephen Hawking once hosted a party but nobody showed up because he sent the invitations for the party only the day after, thus basically proving by experiment that time travel is not possible.
6Exew TIL Casper the Friendly Ghost and Ghostbusters take place in the same universe. Dr. Raymond Stantz appears in both.
EgWg7 TIL about the Danish Protest Pig, a breed created in the early 1900s by Danes under Prussian rule. Unable to display their red-and-white national flag, they bred pigs with a similar color pattern as a symbolic act of rebellion. The breed is now recognized as a cultural symbol of resistance.
awklA TIL Of the 1,213 warships involved in D-Day, only 200 were American and 892 were British; of the 4,126 landing craft involved, 805 were American and 3,261 were British