How tiny Mars helps set Earth’s ice ages
Mars is only about half the size of Earth and has just one-tenth of our planet’s mass.
Compared with giants like Jupiter, it seems far...
Why Tiger Shark bites peak in Hawaiʻi each October
For years, surfers and ocean-goers in Hawaiʻi have talked about “Sharktober,” a time when shark encounters seem more common.
Now, scientists say the pattern is...
Scientists discover Tyrannosaurus rex grew for 40 years, far longer than we thought
Tyrannosaurus rex has long been pictured as a fast-growing monster that quickly reached its enormous adult size.
But a new study suggests the famous “king...
The Arctic is entering a new era of extreme weather, scientists warn
The Arctic is no longer changing slowly.
According to a new international study, the region has entered a new phase marked by frequent and intense...
A lost ice age giant speaks again—from inside a wolf’s stomach
Scientists have recovered the complete genome of a woolly rhinoceros that lived more than 14,000 years ago—and they did it using tissue preserved inside...
The rise of fish began with a mass extinction, fossils reveal
About 445 million years ago, life on Earth nearly collapsed. In a relatively short geological moment, Earth’s climate flipped dramatically.
Massive glaciers spread across the...
Whale hunting in south America began 5,000 years ago—far earlier than we thought
The history of whale hunting is much older—and more global—than researchers once believed.
A new study shows that Indigenous communities living along the southern coast...
This system reveals how super-Earths are born
One of the best things about being able to see thousands of exoplanetary systems is that we’re able to track them in different stages...
Why the Los Angeles fires were so destructive
Twelve months after devastating wildfires tore through parts of Los Angeles, researchers are still uncovering lessons from one of the most destructive urban fire...
Walking on two legs began earlier than we thought
Scientists may have just pushed back the timeline for when our ancestors first started walking upright.
A new study suggests that Sahelanthropus tchadensis, a species...