Gorilla with open mouth in Virunga National Park (© AP Images)

This gorilla might owe its life to a heroic park warden

Rodrigue Katembo has saved critically endangered wildlife in the DRC's Virunga National Park, including mountain gorillas, elephants and hippos.
Row of toilets on an assembly line (TOTO USA)

Japanese toilet maker taps U.S. engineers’ skills

A decision to manufacture its toilets in the U.S. and a reputation for being environmentally friendly are key to Japanese company TOTO's success.
Child walking through trash-infested waters (© Solo Imaji/Barcroft Media via Getty Images)

Keeping plastics out of our oceans

Managing waste so that it doesn’t end up in our oceans is a worldwide challenge. Get tips from researcher Jenna Jambeck on how to reduce plastic pollution.
View of Earth's curvature, with dark space above (NASA)

Be the first to see ultra-high-def video from space

Mark your calendars: On April 26, NASA is broadcasting the first live ultra-high-definition video from the International Space Station.
Scimitar-horned oryx in Chad (© Environment Agency–Abu Dhabi)

Rare antelopes return to Africa

Earth Day is April 22. Celebrate a success story and learn about the reintroduction of the oryx to the wild.
Group of cheetah cubs in straw bed (Courtesy of Smithsonian Conservation Biology Institute)

Cheetah cub boom: 10 in a week! [video]

Two litters of cheetah cubs were born during a single week at the Smithsonian Institution’s research facility.
Earth seen from space (© AP Images)video

April 21: Earth Day – seeing our planet from above and...

Join us for an interactive webchat to learn how different ways of seeing our planet affect how we think about it. Celebrate Earth Day with us!
Sun shining on solar panels (Shutterstock)

How one school system is going solar

A small Indiana town has always relied on the sun to grow crops but now will count on it to power schools.
Animals on a mountain and under the water

For Earth Day, a free poster

On Earth Day, April 22, celebrate the many species of wildlife that make the Earth's polar regions their home. This free poster is available for printing.