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TIL that if one astronomical unit (roughly the average distance between the Earth and the Sun) were scaled to equal one inch, then one light-year would be almost exactly one mile (within a few feet).

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X0mmD TIL that bananas are curved due to their growth towards the sun. The rate of cell division on each side of the fruit, influenced by sunlight, determines the degree of curvature.
nemnY TIL Jason Mewes (of Jay and Silent Bob fame) has been clean of heroin since June 28, 2010, after being convinced to start a podcast with long time collaborator and friend, Kevin Smith. Called "Jay and Silent Bob Gets Old", Jason speaks about his history of substance abuse, among other topics.
XEwyr TIL of Jeremiah Horrocks who died 23 years old, was the only person to predict the transit of Venus in front of the sun in 1639, and one of only two people in the world to witness it, ...the first two ever, and likely the first in 600+ years.
BrMmL TIL that in 2003, an Airbus A300 cargo plane landed safely in Baghdad despite being struck by a missile on the left wing, losing a fuel tank, and losing all hydraulic control surfaces, forcing the pilots to guide the plane to an airport using only engine thrust to steer the plane.
jNndj TIL that hummingbirds burn up to 12,000 calories per day, about six times more than a fully grown average human male.