Satellite images of Earth at night have been a curiosity for the public and a tool of fundamental research for at least 25 years. They have provided a broad, beautiful picture, showing how humans have ...

At least as far back as King David’s psalms and Isaiah’s prophecies, snow has been characterized as a symbol of purity. “Lawn [linen] as white as driven snow” was how Shakespeare once described it.

Since 1999, Earth Observatory has published 16,000+ images. To celebrate our 20th anniversary and the 50th anniversary of Earth Day, we want you to pick our all-time best image. Each week from March ...

If you want to set up a scientific station at the bottom of the world, who would you send? Eighteen “crazy men and a dog,” of course. The men were a collection of engineers, scientists, and support ...

Each summer, monsoon rains sweep across southwestern Asia, soaking India and Bangladesh. In nearby Pakistan, the rains are usually less intense, more intermittent, and centered in the northeast. The ...

The most valuable fossils found in sediment cores are from tiny animals with a calcium carbonate shell, called foraminifera. One species of foraminifera lives in the icy waters of the Arctic above ...