A group of US astronomers may have uncovered the first evidence for a dark matter sub-halo lurking just beyond our stellar ...

An impulsive X4.2 solar flare sparked strong radio blackouts across Africa and Europe as the giant sunspot continues to rage.

Newly reprocessed radio observations are transforming the quiet reputations of nearby dwarf stars. What once looked like ...

Whether or not aliens exist, the SETI program has never stopped believing. Yet today, radio telescopes are no longer seen as the best way to ...

In this letter to the editor, the author comments on the Signal Spot column, “The Top 20 U.S. Locations to Scan the FM Dial.” Radio World welcomes letters to the editor on this or any story. Email ...

What does it take to detect a radio signal sent by extraterrestrial life to Earth? Two decades of work involving radio telescopes stationed on opposite sides of the world, a supercomputer in Germany, ...

Since the interstellar object (ISO) 3I/ATLAS was first discovered on July 1, 2025, it has garnered much attention, including speculation, hopes and fears that it may somehow contain evidence of ...

The most sensational story of the year for astronomers has been the discovery of the comet 3I/ATLAS, which was first observed on July 1, 2025 by NASA's Asteroid Terrestrial-impact Last Alert System ...

December 10, 2025, Mountain View, CA -- For 10 months, a SETI Institute–led team watched pulsar PSR J0332+5434 (also called B0329+54) to study how its radio signal "twinkles" as it passes through gas ...

An instrument that measures radio signals from cosmic ray showers interacting with the Earth’s magnetic field picked up unexplainable signals over 10 years ago, leaving scientists stumped. Researchers ...

Fires in high-rise residential towers are among the most dangerous emergencies that affect buildings. Evacuating hundreds of residents from tall buildings is complex, as smoke and flames can spread ...