Rich in minerals and naturally heated by geothermal energy, the waters of this iconic spa are prized for their healing properties. Here’s how to experience them for yourself.

Astronomers have spent the past decade cataloguing thousands of planets beyond the solar system, many of them falling into a ...

For years, astronomers have celebrated every hint of an ocean on a distant world as a potential foothold for life. Now a new wave of modeling argues that most of those supposed seas are illusions, and ...

Scientists trekked across Icelandic lava flows that served as stand-ins for Venus’s volcanic landscapes, testing tools and ...

Thundereggs look like regular rocks from the outside, but contain intricate and colorful mineral patterns inside — often made ...

This image captures Mauna Kea Volcano, one of the most prominent volcanic formations on the island of Hawaiʻi. Rising from the ocean floor, Mauna Kea is considered the tallest mountain on Earth when ...