On a large campus in Edgewater, scientists at the Smithsonian Environmental Research Center flood a forest every summer to learn about climate change. It's just one of the large-scale experiments conducted...

Find official information on Maryland's General Election, including dates, voter registration, polling locations, mail-in ballots, and how to vote.

“At our core, we are devoted to learning. Specifically, we want to learn how to extract as much value as possible from everyone and everything we interact wi...

Sweltering summer temperatures put last month on par with July 2023 for global warmth, scientists said. More records could be broken in the months ahead.

In 1976, thousands of cyclists road across the country to commemorate America’s 200th birthday, a journey that changed how they saw themselves—and the nation

Extreme temperatures and drought are adding to the stress on oak trees that have lived for hundreds of years and play a key role in the national imagination.

Being in nature is great for your brain. Experts are trying to figure out why.

We know that trees are good for cities. A new study finds that mature trees are especially good.

The Old Ladies Against Underwater Garbage estimate they’ve removed 6,000 pounds of refuse from ponds on Cape Cod. “There’s no better feeling,” one said.

Water levels in the reservoir, which sits behind the Hoover Dam, are at record lows. A continued drop would imperil water supplies for millions of people and cut electricity from the dam.

Cities benefit from trees, which can cool concrete sprawls and improve air quality.