
Seeing 1 Solar Eclipse May Not Be Enough
David Baron, author of the new book American Eclipse, talks about how seeing his first total solar eclipse turned him into an eclipse chaser.

Seeing 1 Solar Eclipse May Not Be Enough
David Baron, author of the new book American Eclipse, talks about how seeing his first total solar eclipse turned him into an eclipse chaser.

Solar Eclipse in 1097 May Be Rock-Carving Subject
A petroglyph spotted in Chaco Canyon may depict a total solar eclipse witnessed by the Pueblo people.


Seniors, Get Your Lifetime National Park Pass Now
Get your lifetime pass before the price takes a quantum leap!

Climate Change Fires Up Polar Bear Treadmill
Sea ice is drifting faster in the Arctic—which means polar bears need to walk farther to stay in their native range. Emily Schwing reports.

The Great American Eclipse
In advance of the big solar eclipse on August 21, author and journalist David Baron talks about his new book American Eclipse: A Nation's Epic Race to Catch the Shadow of the Moon and Win the Glory of the World.

Rocks: A Handy Book for Tiny Geologists
Discover a fantastic book to give to kids as they explore the rocky world this summer.

Amazon Rain Forest May Have Once Been a Giant Marine Lake
Evidence from sediment cores suggests this rich ecosystem was flooded at least twice in the past

Liesegang Banding: Automatic Art
Nature is a marvelous painter

Overlooked Water Loss in Plants Could Throw Off Climate Models
Errors could cause researchers to overestimate the rate of photosynthesis when water is scarce

Sweeping Sands
Let's visit some dunes I have known—including some frozen in time

Permanent Impermanence: or, How the Fudge Did That Fossilize?
Imagine the weather turning to stone...

How to Build the Perfect Sandcastle--According to Science
A sedimentologist weighs in on beach selection, tools and the perfect sand-to-water ratio