"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." In 2016, astronomers spotted a quasi-satellite asteroid about the size of a ferris wheel in an Earth-like ...

Foreword -- Preface -- Acknowledgments -- Science and critical thinking -- The flat earth -- Ptolemy revisited -- The hollow earth -- Is the earth expanding? -- Did we really land on the Moon? -- ...

One of the strangest mysteries about our Earth is the presence of two dense, giant blobs inexplicably clustered above the planet's core.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. CAPE CANAVERAL, Fla. (AP) — Planet Earth is ...

Learn more about magnetic “switchbacks,” an odd magnetic twist that wasn’t expected to happen so close to home.

The moon is weird. It's completely unlike anything else in the solar system. So how did our planet end up with such a special ...

Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.

A weird "quasi-moon" of Earth is about to get a name — and you can be part of the process. Earlier this year, the science podcast Radiolab and the International Astronomical Union (IAU) — the ...

But for the past several years, scientists have known of a mystery in the magnetotail: a missing storm. They have found a signature of a storm, but no storm to actually go along with it. NASA’s ...