Trump cutting ties with the world’s oldest climate treaty is another despicable effort to let corporate fossil fuel interests ...

Astronomers have confirmed a Saturn-size world drifting alone in deep space roughly 10,000 light-years from Earth, a discovery that turns a once-theoretical idea into a measured reality. The planet ...

Explore the full archive of TIME, a century of journalism, insight, and perspective, with AI that helps you research, connect ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

Increasing international tensions, global warming and the changing world economy have put Greenland at the heart of the ...

Four astronauts are about to become the first humans to venture near the moon in more than half a century since NASA's iconic ...

In a zesty new discovery, scientists have unearthed a strange lemon-shaped exoplanet. It is unlike one we have seen before, ...

The tech entrepreneur on his “Don't Die” philosophy, anti-aging protocol, and the scientific advances that excite him most ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't ...

Planets usually stay close to their host stars, tracing steady paths shaped by gravity. Yet some planets break free and drift ...

The team has estimated that the planet is about 22 percent the mass of Jupiter, so roughly a Saturn-sized world. It is ...