Screenshot from the 1986 sci-fi movie "Flight of the Navigator".
(Image credit: Disney)
Despite Han Solo's protestations to the contrary, travelling faster than light on screen is usually just as straightforward as dusting crops. So whether you're in "Star Wars", "Star Trek" or "Battlestar Galactica", jumping to hyperspace, going to warp or spooling up the FTL really is as simple as popping out to the store.In fact, Albert Einstein's time-dilating general theory of relativity tends to be little more than an afterthought, with films highlighting the inconveniences of interstellar travel definitely in the minority. For this reason, the very existence of "Flight of the Navigator" is even more improbable than its premise.The Disney family movie — which celebrates its 40th anniversary this weekend — sends an ordinary kid on an unlikely journey that's part "Interstellar", part "Back to the Future".On July 4, 1978, 12-year-old David Scott Freeman is briefly knocked unconscious after he falls into a ditch near his Florida home. When he wakes up — seemingly moments later — he finds strangers living in his house, and gradually comes to realize that eight years have passed for everybody else. In the meantime, David has been declared dead, his little brother is now his big brother, and — perhaps weirdest of all — music videos are now a very big thing on MTV.He doesn't know it yet, but much like Matthew McConaughey's Cooper in "Interstellar", David has been caught in the crosshairs of relativity. It turns out that he's unwittingly taken a ride in a Trimaxion drone ship, making the round trip to the planet Phaelon (some 560 light years away) in a mere 4.4 solar hours.
