Scientists and cruise operators are fighting the impacts of tourism in Antarctica—with the help of tourists themselves.
There are nearly 40,000 documents from Sally Ride’s career in the Smithsonian’s archives, and you can help make them more accessible.
Central Park in New York City is home to thousands of Eastern gray squirrels. Last year, a team of 300 volunteers counted them all.
On its most recent flyby of the solar system's biggest planet, NASA's Juno probe photographed a mass of turbulent clouds in Jupiter's atmosphere.
The snapshots will be used to verify satellite data.