"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." For more than 50 years, scientists theorized that an electromagnetic wave could be reflected ...

Physicists have finally confirmed a phenomenon that sounds like pure science fiction: waves that appear to bounce off a sudden change in time rather than a surface in space. The effect, known as a ...

For more than 50 years, scientists theorized that an electromagnetic wave could be reflected temporally—not just spatially. Scientists have been unable to confirm the existence of time reflection due ...