Just three decades ago, astronomers had no evidence that planets commonly orbited other stars. Then in 2025, NASA confirmed ...

James Webb uncovered exotic salt clouds surrounding the famous "Pink Planet," solving a long-standing mystery about one of ...

NASA wants to send an ambitious fleet of helicopters to soar through Martian skies—but scientists fear the endeavor could ...

Two scientists want NASA to build a quarantine lab for alien germs on the Moon, rather than on Earth. The pair, ...

The planets are extremely large, with TOI-791 b being about the same size as Jupiter, and TOI-791 c even larger. Yet, they ...

A biologist specializing in invasive species has partnered with a former Pentagon strategist in pushing NASA to construct a ...

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

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

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

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.

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

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