Star Wars: Science fiction vs science fact
"Star Wars" never did let scientific facts get in the way of a good story: Fans just accept that X-wing fighters fly through outer space as if they were jets in an atmosphere, that huge spaceships could float on antigravity drives or zoom faster than light, and that lightsabers cut through virtually everything except another lightsaber (why don't they just make the darn things longer?).
But in the 28 years since the first "Star Wars" movie came out, science and technology have gone in directions that reflect some aspects of that galaxy long ago and far away: Particularly when it comes to space weaponry, robotics and communications, there are increasing parallels between "Star Wars" science fiction and science fact.
That doesn't mean engineers looked to the movies to figure out how to design a modern-day Death Star. Rather, the visions reflected in the movies had an impact on how real-life technologies were presented. The concept for a national missile defense system, which was nicknamed "Star Wars" during the Reagan administration, serves as a prime example. READ: Science facts catch up with movie sci-fi
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