What a remarkable update to our ancient understanding of our place in the solar system.

On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a cosmic ray detector, was designed to measure the radiation environment in Earth ...

Planet Earth is spinning a little faster today — resulting in one of the shortest days of the year. But the change will be so minuscule you won’t even notice. We’re talking even less time than the ...

With an estimated 6 sextillion kilograms of the stuff—that’s 21 zeroes by the way—the Earth’s core is another example of why hydrogen is the most abundant element in the universe.

In the whole history of Earth's climate, few events are as extreme as those that geologists call "Snowball Earth." ...

"We don’t know where they are,” said NASA’s planetary defense officer Kelly Fast at the AAAS conference in Arizona this week.

The new plot twist is that in order to keep enough nitrogen and phosphorus near its surface, a planet has to start out with ...

New research reveals the source of this carbon – and the driving forces behind it – are far more complex than previously ...

Tiny zircon crystals are revealing that Earth’s earliest history may have included surprisingly complex tectonic activity.

JACKSONVILLE, Fla. – While trivia nights aren’t really my thing, I like to think I know a little about a lot. And, throw a weather-related question into the mix, and I’m the one everyone puts the most ...