Amateur radio users around the world tuned in to HAARP’s Tuesday experiment, which transmitted a signal to the asteroid at 9.6 megahertz. User-published images and video can be found on Twitter with ...

A group of researchers is attempting to bounce radio signals off a 500-foot-wide asteroid during its close flyby of Earth on Tuesday. The High Frequency Active Auroral Research Program (HAARP) is ...

An experiment to bounce a radio signal off an asteroid on Dec. 27 will serve as a test for probing a larger asteroid that in 2029 will pass closer to Earth than the many geostationary satellites that ...

A powerful geomagnetic storm hit Earth over several days beginning May 10, causing some disruptions to GPS services and other problems. It also allowed the aurora borealis — known as the northern ...