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Major 8.2-magnitude earthquake rocks Alaska
Sirens sounded across Alaska's Kodiak island last night, after an 8.2-magnitude earthquake prompted tsunami warmings.
July 29, 2021
Why wildfires create red suns and moons
Red suns and moons have been seen all over North America in July 2021. The reason is drifting wildfire smoke. Here's why it happens.
July 28, 2021
Future sea level rise: When, where, how much?
Scientists have grown more confident about sea level rise projections for the next few decades, but competing factors make it hard to see far into the future.
July 28, 2021
Dinosaurs already in decline before asteroid?
Life was already getting harder for dinosaurs before an asteroid wiped them out.
July 24, 2021
Wildfire smoke blankets North American skies
Wildfire smoke from Canada and the western United States has blanketed North America this week. See photos and video.
July 23, 2021
Mares’ tails over the Pacific Northwest
Mares' tails - aka cirrus uncinus clouds - are found high above Earth's surface, where the air is very cold. They might mean rain is on the way.
July 21, 2021
Why and how fireflies light up
A firefly's familiar glow is caused by a chemical reaction. Why and how fireflies light up here, plus many wonderful firefly photos.
July 19, 2021
Fogbows are rainbows’ cousins
A fogbow is cousin to a rainbow. It's made by much the same process as rainbows, but with a fog's smaller water droplets instead of larger raindrops.
July 18, 2021
Love sea turtles? Here are 7 cool facts
Sea turtles are fascinating creatures. Learn some facts about these much loved marine reptiles.
July 14, 2021
Study sees surge in coastal flooding in 2030s
From NASA JPL. In the mid-2030s, the U.S. coast will experience increasing coastal flooding, when the lunar cycle will amplify already rising sea levels.
July 13, 2021
