Add Yahoo as a preferred source to see more of our stories on Google. You may have heard a lot of online chatter about Earth's two moons recently, but that doesn't quite get the discovery right. Earth ...

How much do you know about our planet? Here are the amazing, odd and downright cool Earth facts scientists learned in the ...

Our planet is a cosmic marvel spinning through space at incredible speeds, harboring an estimated 8.7 million species, and maintaining the perfect conditions for life as we know it. Yet despite living ...

The realizations on social media align with what researchers have long known about Earth's composition.

Extraterrestrials have issued a stark warning to mankind that we risk annihilating our planet in a stunning UFO revelation, which researchers are hailing as "first contact." The ominous alert from ...

The Earth is pretty good at keeping its pace. However, variations do happen. And on three separate days this summer—July 9, July 22, and August 5—the Earth will spin notably faster than usual. Of ...

Researchers are learning details about asteroid impacts going back to the Earth's early history by using a new method for extracting precise information from tiny "spherules" embedded in layers of ...

Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around Earth. Unlike the Earth's moon, quasi-moons are not gravitationally bound ...

You may have heard a lot of online chatter about Earth's two moons recently, but that doesn't quite get the discovery right. Earth still only has one true natural satellite — our 2,159-mile-wide moon ...