The scientists originally assumed that the signal came from a distant object in the cosmos, but further analysis revealed that the long-dead Relay-2 was in fact the culprit behind the mysterious pulse ...

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

In September 2023, a global seismic mystery began to unfold. Every 90 seconds, the Earth pulsed with a strange, low-frequency ...

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

A relic from the dawn of the space age has suddenly—and unexpectedly—sprung back to life, catching the global scientific ...

Astronomers have finally solved a year-long mystery that had them baffled after discovering a mysterious signal. Australian ...

Long-dead satellite emits strong radio signal, puzzling astronomers NASA launched communications satellite Relay 2 in 1964. Three years later, Relay 2's mission was over.

Source of the radio waves was tracked to a location that matches that of NASA’s defunct Relay 2 spacecraft, which launched in ...

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

Alien-hunting scientists reveal origin of mystery space pulse after year-long probe into surprising ‘distant object’ The signal was so strong that it surpassed all other signals coming from ...

Scientists received a mysterious radio pulse that came from a satellite that had been dead for decades. The signal was so powerful that for a moment it outshone all other objects in the sky, New ...

A powerful radio signal detected in 2024 was traced to a defunct 1960s satellite ...