Parts of the electromagnetic spectrum invisible to human eyes reveal a vast amount of information about the universe, but it took a long time for astronomers to learn how to view it.

Researchers at ETH Zurich have managed to make sound waves travel only in one direction. In the future, this method could ...

As electromagnetic waves travel, they collect information about their environment. This property is widely exploited in a host of applications that rely on waves being deflected, scattered or ...

To accelerate the pace of deploying electromagnetic warfare techniques to Soldiers, Army researchers are developing new ...

Scientists have hypothesized for over six decades the possibility of observing a form of wave reflections known as temporal, or time, reflections. Researchers detail a breakthrough experiment in ...

All forms of electromagnetic radiation, whether they're called waves or rays, are generated by particles in motion. In a radio signal, for example, negatively charged electrons quickly move back ...

The electromagnetic spectrum is a continuous range of wavelengths. The types of radiation that occur in different parts of the spectrum have different uses and dangers - depending on their ...

Ed Bloomer, an astronomer at the Royal Observatory Greenwich, examines how well science fiction films have predicted futures ...

The electromagnetic spectrum is a rainbow of light waves that surround us — but we only see a small part of it. From radio waves to gamma rays, each type of light has its own properties and uses. By ...

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 ...