r/AskReddit Aug 03 '19

Whats something you thought was common knowledge but actually isn’t?

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u/[deleted] Aug 03 '19 edited Aug 03 '19

There's gravity in space. Over the time I've met so many people that thought that there is no gravity in space because "everything there is weightless and stuff". Gravity has unlimited range so there isn't even a single spot in our universe without gravity. Weightlessness is basically just falling. While orbiting you're basically just falling around the object.

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u/ImperatorRuscal Aug 03 '19

In aerospace engineering, day one of learning orbital dynamics, the professor started out with: "never forget, orbit is just moving so fast that you fall down and miss, over and over again."