The scientific search for extraterrestrial life is almost entirely focused on biosignatures, radio signals, and microbial ...

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

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

Researchers have looked at how particular microbes from Earth would fare in conditions like those of Mars, the moon, and the ...

New research suggests sperm whales communicate in a complex language of their own. The implications for animal rights could ...

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

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

A study suggests that stellar plasma may distort alien signals, complicating SETI's search for extraterrestrial life by ...

Astronomers studying the intriguing comet 3I/ATLAS on Monday said that this visitor is incredibly ancient, potentially nearly ...

Astronomers studying the interstellar comet 3I/ATLAS say it could be a 12‑billion‑year‑old relic formed in near‑absolute‑zero ...

Not every sci-fi show stands the test of time, but these are the classic sci-fi shows that are still worth watching today.

Scotland's World Cup match against Brazil was expected to attract plenty of attention -- but an anticipated alien invasion was not on the list.