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Why did big, fierce T. Rex have such tiny arms?
New research says Tyrannosaurus rex might have evolved to have small arms because their large heads became more important in taking down prey.
May 26, 2026
Good news! Here’s where light pollution is getting better
A new global map from NASA shows areas that are seeing a reduction in light pollution. See the maps here and learn how to limit light pollution near you.
May 24, 2026
Will Lake Mead – largest US reservoir – reach record lows?
The U.S. Bureau of Reclamation said that the water levels at Lake Mead could drop to all-time lows by July 2027. Read more here.
May 24, 2026
Joplin tornado: 15-year anniversary of a disaster
It’s been 15 years since the Joplin tornado killed more than 150 people. What is the town of Joplin, Missouri, like today?
May 22, 2026
2026 name list for Atlantic hurricanes: Is yours among them?
The forecasts for Atlantic hurricanes and tropical storms are out. And the hurricane names for 2026 are ready. What'll happen next?
May 21, 2026
Cumulonimbus clouds bring thunderstorms: How to spot them
Cumulonimbus clouds, sometimes called thunderheads, are towering formations that can bring severe storms such as hail, lightning, flooding and tornadoes.
May 21, 2026
Synchronous fireflies light up these national parks
The synchronous fireflies are back! These lightning bugs flash in harmony in the Great Smoky Mountains and other nearby parks from mid-May to mid-June.
May 20, 2026
The binturong is a strange mammal that smells like popcorn
The binturong is a strange mammal that smells like popcorn, lives high in the trees and quietly helps tropical forests grow.
May 18, 2026
Severe weather, tornadoes possible Sunday and Monday
Severe weather, tornadoes are possible across parts of the U.S. Sunday and Monday, May 17 and 18, 2026. Plus large hail, damaging wind gusts.
May 17, 2026
The Denali sled dog puppy cam is now live!
The Denali sled dog puppy cam is now live! Watch this year's recruits tumble and play in Alaska at the Denali Kennels. Read more about the sled dogs here.
May 14, 2026
