"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

Mars ended NASA’s InSight mission on its own terms, not with a dramatic crash or a catastrophic malfunction, but with a slow, ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

New species are being discovered faster than ever before — at a rate of more than 16,000 every year, suggests a new study.

Apple TV aired it at 9 pm ET/6 pm PT, and it became the streamer’s most-watched show, surpassing Ted Lasso and Severance. The ...

The Perseverance rover has been exploring Jezero Crater for years, but it's never found an otherworldly object quite like ...

Pluribus imagines Kepler-22b as an ocean world that sends a gift to humanity through radio waves. In real life, no such ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

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

Humanity has sent into space everything from lightsabers and Tesla Roadsters to golden records and entire digital genetic ...