Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these signals are likely sent as narrowband radio waves, we may now have a way to ...

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, ...

This year, the US Congress has heard testimonies from "UFO witnesses", providing more evidence than ever that alien intelligence may have attempted contact with Earth. But what are the pivotal moments ...

Scientists have sought out and detected radio emissions from from interstellar comet 3I/ATLAS, all but confirming that it has natural origins.