Tackling the John Muir Trail at night with only stars and moon to light the path, a veteran hiker experiences the popular 200-mile trail in a new—and wilder—way.

In a frigid corner of the solar system, Saturn’s moon Titan has surprised scientists with an unexpected chemical twist.

Scientists from NASA and Chalmers University have discovered that incompatible substances can mix on Titan’s icy surface, ...

Researchers at Chalmers University of Technology in Sweden and the US space agency NASA have made an unexpected discovery ...

The race is on to harness the near-infinite power of nuclear fusion—by building a star on Earth. And scientists are closer ...

Texas lawmakers want to move the Smithsonian’s retired space shuttle to Houston. It’s “a vanity project that is apt to ...

Previously undetected organic compounds have been found in ice ejected into space from Enceladus, making the satellite a ...

With the recent discovery of traces of what may or may not be or have been life on Mars, eyes are turning to another world in ...

For centuries, humans have lived underground. Today, that ancient practice is under dire threat—even as cave life makes more sense than ever. Gabriele Gouellain waits in the kitchen of her ...

The case for a newborn ocean on Saturn's moon Mimas continues to build.

This ancient beverage does more than hydrate—it’s packed with antioxidants and compounds that boost your health, focus, and longevity. A steaming cup of tea holds more than flavor—it’s a source of ...

This newly discovered comet could soon glow bright enough for the naked eye as it sweeps through October's morning and ...