With that in mind, high-energy gamma ray beams would allow you to have your own "Star Wars" lightsaber fight. So to all who still don't believe a real-life lightsaber match is doable, I find your ...

Witness the creation of the world's first retractable plasma-based lightsaber, with a blade that reaches 4,000°F and can cut through steel. This engineering feat brings the iconic Star Wars weapon to ...