New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents ...

This video looks back at Tabby’s Star, the bizarre stellar anomaly that pushed astronomers into one of the strangest public ...

Space: 1999 may have offered audiences a glimpse into the future, but its premise was rooted in the past — specifically, in a ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

Brian Johnson, who has died aged 86, was an Oscar-winning visual effects maestro and modelling specialist who contributed ...

A biologist specializing in invasive species has partnered with a former Pentagon strategist in pushing NASA to construct a ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other ...