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Giant trees break a decades-old science theory
Giant trees have evolved remarkable adaptations that allow them to reach extreme heights while maintaining efficient water transport.
August 31, 2026
Do you love twilight? The 3 stages explained
Twilight is that magical time between sunlight and darkness. Astronomers, experts on nighttime, recognize 3 stages of twilight.
August 30, 2026
Nepal flash flood nightmare: What caused it?
On August 26, 2026, a glacier collapse and landslide triggered a huge release of water. The Nepal flash flood wiped out villages and took untold lives.
August 27, 2026
National parks from space: How many can you name?
Take the quiz to see how many national parks from space you can name. And don't forget to celebrate National Park Week, from August 22 to 30!
August 26, 2026
Will you see colors in aurora? Or do you need a camera?
If you live below 50 degrees N. latitude, any aurora visible is likely to be low on your horizon, and you're less likely to see vivid colors.
August 25, 2026
1st photo of Earth from the moon 60 years ago
As NASA plans to land astronauts on the moon with the Artemis IV mission in 2028, it's fun to see this 1st photo of Earth taken from the moon.
August 23, 2026
Pyrocumulonimbus clouds are fire-generated thunderstorms
This summer, NASA has been studying pyrocumulonimbus clouds, or fire-driven thunderstorms. Researchers are flying planes right into the plumes for samples.
August 20, 2026
Ancient Amazon civilization might have been home to millions
Laser surveys have revealed hundreds of earthworks in the Amazon. Researchers estimate the ancient Amazon civilization could have supported 3 million people.
August 14, 2026
Why the Spokane wildfires became so catastrophic
Spokane wildfires show wildfire risk is growing, but preparedness, resilient communities and smarter land management can reduce future losses.
August 5, 2026
It’s Katmai bear cam season! Livestream here
The world-famous Katmai bear cam is live! Watch brown bears at Katmai National Park now and explore the livestream to learn more about these incredible animals.
July 30, 2026
