A NASA satellite that’s been orbiting as space junk since 1967, Relay 2, emitted an unexpected, powerful radio burst that ...

A powerful and mysterious blast of radio waves that astronomers believed was a fast radio burst (FRB) from far beyond the ...

First thought to have originated from a distant cosmic object, the short and intense signal was actually coming from much ...

Learn how a deactivated satellite sends signals from beyond, not by reviving its systems, but by inadvertently setting off ...

Astronomers studying a distant galaxy cluster stumbled upon ancient radio signals that might hold clues to the formation of ...

Astronomers in Western Australia detected a powerful radio burst, initially mistaking it for a new astronomical object or a ...

Radio telescopes saw a strange burst of unknown energy in June 2024. Now we know it was from Relay 2, an early ...

Satellites that retire are deorbited into a graveyard orbit within 25 years of their missions ending. This is the case with ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...

A communications satellite out of commission since 1965 is chirping at the Earth in radio frequencies. What is happening? We ...

Around midday on June 13 last year, my colleagues and I were scanning the skies when we thought we had discovered a strange ...