Titan, Saturn's largest moon, is home to vast lakes and seas - not of water, but of liquid methane and ethane. In this video, ...

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 ...

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 ...

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

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

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

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

NASA works with scientists worldwide to advance our understanding of what hazards are in our solar system and how we can mitigate the risks.

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

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the third known interstellar comet ever spotted. When scientists turned NASA’s ...