The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is ...

Radio telescopes have long scanned quiet patches of sky for a lone, artificial-sounding ping, but a growing body of research ...

Associate Professor of Physics Jonathan Pober has spent the past 20 years detecting faint astronomical signals in radio waves that can provide information about the early universe. This task can be ...

The Allen Telescope Array, Hat Creek Radio Observatory. Credit: Alexander Pollak. Radio interferometry is a technique in radio astronomy where signals from two or more radio telescopes are combined to ...