"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 ...

The search for life on Earth is speeding up, not slowing down. Scientists are now identifying more than 16,000 new species ...

The Perseverance rover has been exploring the Jezero Crater for years, and it's finally found a potential meteorite, now ...

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.

The James Webb Space Telescope detected evidence on an atmisphere on a distant planet called TOI-561 b, its proximity to its ...

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