When Vader and Skywalker whip out lightsabers , the blades look like sticks of light-matter . Comment: The new light-matter acts like it does in the movies , scientists say . But they have only created subatomic amounts of it , not nearly enough for a lightsaber .
When Vader and Skywalker whip out lightsabers , the blades look like sticks of light-matter . Light usually wo n't stick together like regular matter , but scientists have made it happen . The new light-matter acts like it does in the movies , scientists say . But they have only created subatomic amounts of it , not nearly enough for a lightsaber .