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

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

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

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

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

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

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

Researchers propose turning a future NASA moon base into a quarantine station that would screen space samples before they ever reach Earth.

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

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

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

Learn about a new working paper that argues that consciousness may not be limited to Earth-like biology, raising the ...