Researchers say that touchable 3D holograms could be here before you know it. Here's what they look like in action.

An curved arrow pointing right. It's really simple to build a projector for your smartphone to be able to project the same types of holograms seen in Star Wars and other movies. Here's how!

An curved arrow pointing right. It's really simple to build a projector for your smartphone to be able to project the same types of holograms seen in Star Wars and other movies. Here's how!

Remember the scene in Iron Man 2 where Tony Stark rediscovers a new element and is handling virtual 3D holographic elements ... and types of strips, from projector screen material to silicone.

The theory, which has been around since the 1990s and is now a mainstream scientific hypothesis, holds that the universe and everything in it is a three-dimensional projection ... concept in physics ...

Sony showcases a futuristic PlayStation controller concept, departing from traditional design with touchpads and holographic ...