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By sharing their observations, birdwatchers can help scientists understand where the various species of birds are throughout the year.

The Feather Followers

By sharing their observations, birdwatchers can help scientists understand where the various species of birds are throughout the year.
Feature Article
Dec. 28, 2020
This stovepipe tornado formed on May 31, 2010, near the border between Colorado and Oklahoma.

The Dirt on Tornadoes

Moisture on the ground may fuel more violence in the sky.
Feature Article
Dec. 28, 2020
Ripe malbec grapes hang from the vine in Mendoza Province, Argentina.

Stormy Vineyards

New methods help Argentinian farmers brace for bad weather.
Feature Article
Dec. 28, 2020
This image of Turkey offers a comparison of the color of the Black Sea (top of the image), which shows a phytoplankton bloom, and the Mediterranean Sea (bottom of the image)

Spin Cycle

So much depends on the ocean's deep churn.
Feature Article
Dec. 28, 2020
A statue on the spire of Duomo Cathedral overlooks the Milan skyline.

Soiled Soils

Invisible pollutants lurk under Italy’s most populous valley.
Feature Article
Dec. 28, 2020
A man walks through the Acropolis while smoke plumes billow from a forest fire near Athens on July 25, 2007.

Smoke over Athens

The effects of forest fires show up in a multi-satellite view of pollution.
Feature Article
Dec. 28, 2020
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