In the late 1800s, the French naturalist Camille Viguier proposed an idea that would be dismissed and forgotten for more than ...

How do pigeons know where they're going while flying across vast distances? Researchers point to their inner ear system.

The Earth’s magnetic field, a silent guardian against harmful solar radiation, has been behaving strangely in recent years. This has sparked many questions and concerns about the implications of such ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: The Earth’s magnetosphere protects life from deadly ...

One of Earth’s deepest mysteries lies beneath our feet: the planet’s inner core. Made of iron and nickel, the hot, solid sphere is about 70% the size of the moon. Recent research suggested this dense ...

In 2008, Erez Ben-Yosef unearthed a piece of Iron Age "trash" and inadvertently revealed the strongest magnetic-field anomaly ever found. Ben-Yosef, an archaeologist at Tel Aviv University, had been ...

Here’s what you’ll learn when you read this story: The Earth’s magnetosphere protects life from deadly space radiation, but many aspects of its function remain a mystery. Scientists have long believed ...

Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, sign up for free here. One of Earth’s deepest mysteries lies beneath our feet: the ...

Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, sign up for free here. Recent research suggested this dense center reversed its spin ...