The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, good ol' Earth helps us understand what the universe might be doing beyond ...

The Mechanics of Earth's Spin Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 ...

A ridiculous but instructive thought experiment involving deep time, plate tectonics, erosion and the slow death of the sun ...

Had one hoped to leave a time capsule for today’s Bostonians in the Permian period 250 million years ago, much less the Pliocene epoch four million years ago , they would have been completely, utterly ...

A physicist with a penchant for the morbid and a writer with a taste for the macabre have looked at the gruesome science ...

America’s vast landscape encompasses some of Earth’s most breathtaking natural wonders, from towering mountain ranges and ...

The Ripton writer, educator and environmentalist has spent decades warning us about an impending climate apocalypse. Now he offers a ray of hope in dark times.

Read the issue » The Stones of Stenness are part of one of Europe’s richest archeological landscapes—the legacy of a ...

Forests are mystical settings in stories. In real life, those who wander the woods often stumble upon structures, items, and ...

Visiting Las Vegas in December? Here are all of this month's events and the best things to do in Las Vegas this December.

At first sight, the Jantar Mantar in Jaipur could be the work of an installation artist with a line in metaphysical ...

A disturbance in the polar vortex could spill icy cold air south into the United States much earlier than usual, the National ...