Saturday, April 19, 2025, was the first day of National Park Week, an annual celebration of America’s 433 national parks.

A spot on the sun’s surface will likely disrupt Earth’s magnetic field, pulling the phenomenon to more states, forecasters ...

States along the Canadian border may have an opportunity to see the northern lights again on Tuesday night, after recent ...

The northern lights may be visible as far south as Idaho, New York and South Dakota following strong solar storm activity.

A giant sequoia located in Sequoia National Park in California, the General Sherman is 52,500 feet in volume and is more than ...