For interstellar communication, a particular range of radio frequencies, “microwaves” from 1 GHz to 10 GHz, are particularly good choices. At lower frequencies our galaxy emits prodigious amounts of ...

The recent success of NASA's laser communication test represents a paradigm shift in space technology. Traditionally, space ...

Instead, they listen for signals that could make air travel safer. Researchers from Sandia National Laboratories and Ohio ...

An old physical phenomenon, known as the Hall effect, has revealed some new tricks. New findings have potential implications for understanding fundamental physics of quantum materials and developing ...

An old physical phenomenon known as the Hall effect has revealed some new tricks, according to a team co-led by researchers ...

More than 15 miles below the floating cooler, cell phone towers emit a steady hum of radio frequency waves. Hundreds of miles ...

Alternative signals - radio frequencies from cell phone towers - could be used to calculate an airplane's position and ...

Researchers are taking experimental navigation technology to the skies, pioneering a backup system to keep an airplane on course when it cannot rely on global positioning system satellites.