Astronomers swept millions of candidates and found no alien signals from K2-18b, setting the first power limit on any ...

Emma Chapman's "The Echoing Universe" is a vivid survey of the hidden parts of the cosmos and those who seek them out.

If 3I/ATLAS isn’t an alien probe, its discovery may be even more important. Scientists detected no radio signals from the ...

Radio astronomers have decoded a peculiar repeating radio signal from deep space, tracing it to a vampiric binary star system ...

"The results from 3I/ATLAS show how realistic it is to detect a signal with the technology we have today." When you purchase ...

Even though astronomers didn’t detect alien tech signals from a rare interstellar visitor, the results are worthwhile, they ...

The SETI Institute said Wednesday that extensive radio scans by its telescope in Northern California found no signs of ...

Later this year, a prototype telescope is slated to land on the moon. It could usher in a new era of lunar radio astronomy.

Our understanding of the electromagnetic spectrum goes back to Isaac Newton, but astronomers are still finding new ways to ...

Some people occasionally hear a low buzzing or humming sound that doesn't have a clear source. An estimated 2–4% of the world's population hear this. Scientists have been trying to figure out for ...

Experts have identified a hidden chemical fingerprint that may help in the decades long search for alien life in the deepest regions of the cosmos.

The Soviet Duga radar system, designed to detect missile launches from geopolitical rivals, disrupted global communication ...