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

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

Satellite footage has revealed that giant mega-tsunamis were the cause of seismic vibrations that rocked the planet for nine days, per a "Nature Communications" study making waves online.

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

As fascinating as bizarre signals from other planets can be—teaching us about earthquakes on Mars or auroras in the skies of Jupiter —sometimes even weirder signals come from weather extremes ...

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

As to why Relay-2 suddenly emitted this signal, that’s a mystery. The scientists behind the detection believe that the satellite may have built up electricity over the years and then suddenly ...

A mysterious signal that appeared to be emanating from Proxima Centauri put scientists on a hunt to track down its source. What they found was that it had a decidedly earthbound origin.