"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? -- ...

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 ...

This is an archived article and the information in the article may be outdated.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.

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 ...

NASA technology discovered a “super-Earth” exoplanet emitting “strange signals.” Rating: Mostly True (About this rating?) What's True: Scientists using NASA's Transiting Exoplanet Survey Satellite ...

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

Earth’s core has long been a place of mystery to scientists. The core of our planet sits just over 1,800 miles below the surface and exists as a ball of seething hot metal, specifically iron and ...