But you believe all that ghost-hunting and cryptozoology stuff on TV? Look, the stuff you've been taught about in science classes has been rigorously tested, over and over. Astronomers didn't just pluck a number out of a hat and say "okay, that's the distance between the Earth and Sun". They worked out ways to figure it out, did the calculations, and arrived at the answer (now known to be about 150 million km). The point is, good science should be backed by evidence and observations- for example, scientists certainly wouldn't have backed something as counter-intuitive as quantum physics if it wasn't for all the experiments showing its effects in action.