Tributes have been paid to a "towering figure in British astronomy" who has died aged 102. Sir Francis Graham-Smith was believed to be the world's oldest active radio astronomer, according to ...

A mysterious and powerful blast of radio waves detected last year, suspected to originate far beyond the Milky Way came from a long-dead NASA spacecraft in Earth's orbit.

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

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.

A radio signal from the dawn of time could help scientists weigh the first stars and reveal how they lifted the cosmic darkness.

A problem emerges Fast radio bursts are the brightest radio flashes in the Universe, emitting 30 years’ worth of the Sun’s energy in less than a millisecond – and we only have hints of how ...

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

NASA satellite emits 'spark' decades after going dormant: Astronomers think they know why Source of the radio waves was tracked to a location that matches that of NASA’s defunct Relay 2 ...

Ralph Spencer, Professor Emeritus of Radio Astronomy at the University of Manchester in the UK, who was also not involved with the work, agrees that the proposed mechanism is feasible, noting that ...

Watch sunspot region 4114 erupt with its most powerful solar flare yet. The X1.9 class flare triggered radio blackouts across the Pacific Ocean.

The ALMA radio telescope array in the Atacama Desert temporarily halted operations after a rare snowfall blanketed the base camp last week.

An early universe radio jet spanning an astonishing 200,000 light years has been discovered by the International Gemini Observatory and LOFAR.