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

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Astronomers suspect that a massive metallic cloud swirling in a nearby star system could be hiding a giant planet or dwarf ...

A cigar-shaped rock zooming through our Solar System — the first object from a foreign star system ever spotted in our midst — is cloaked in a coat of organic material, astronomers said Monday. Dubbed ...

Gas giants are truly fascinating. While our solar system has Jupiter and Saturn that are categorized under the umbrella, several gas giants exist outside our neighborhood as well. The largest of them, ...