A scorching, airless world just 48 light-years away is offering scientists a rare glimpse into the geology of distant planets ...

New research suggests that many planets previously considered promising for life may, in fact, be far less hospitable. A ...

The live event will take audiences on an extraordinary journey through a century of exploration and discovery in the natural ...

Planet Earth is spinning a little faster today — resulting in one of the shortest days of the year. But the change will be so minuscule you won’t even notice. We’re talking even less time than the ...

Astronauts and robotic spacecraft have captured breathtaking photos of Earth from space for decades. See the best images.

A forgotten signal found by citizen scientists could be a habitable Earth-like planet. Here’s how astronomers tracked it down ...

A rocky planet nearly 50 light-years away appears to be airless, dark, and covered in volcanic or weathered rock, according ...

Scientists have seemingly settled long-standing arguments about whether the components of Earth originated from the inner or ...