The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

Scientists have found a hidden biosphere stretching miles beneath Earth’s surface and as deep as 6 miles below the seafloor.

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

NASA’s Perseverance rover has uncovered what may be the strongest evidence yet of ancient life on Mars. Inside a ...

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

It may seem like we are on the verge of discovering alien life. In 2025, a press release stated that we have the “strongest hints yet” of extraterrestrial life on the exoplanet K2-18b. And when ...

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet K2-18b, most experts do not yet think alien life has probably been found.

There are "vast hidden magma systems" inside of Mars, scientists say – and it could have major implications for the search ...

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

It may seem like we are on the verge of discovering alien life. In 2025, a press release stated that we have the "strongest hints yet" of extraterrestrial life on the exoplanet K2-18b. And when ...

When a scientific controversy or breakthrough dominates headlines, press officers and journalists often quote a handful of ...

SETI Institute's radio scans of interstellar comet 3I/ATLAS found no evidence of alien technology, confirming its natural origins.