The Earth's poles flipped 41,000 years ago in an unusual event saw the magnetic field weaken, allowing cosmic rays to batter the atmosphere. And humans have now heard the terrifying sounds of the ...

It sounds like something out of a science-fiction movie. For the past couple of weeks, Earth's orbit has been home to a "mini-moon" the size of a city bus. The celestial object is more than just a ...

Here’s how it works. Earth's mantle is split by the Pacific Ring of Fire, an ancient schism that reflects the creation and destruction of the supercontinent Pangaea, a new study finds.

Four large asteroids will make their closest approaches to Earth on Thursday, each passing by the planet within a 24-hour time frame. Two had already zipped past early in the morning, according to ...

How old is Earth? Our planet's age is known from a variety of sources, from rocks on our own planet to ones from the moon. When you purchase through links on our site, we may earn an affiliate ...

These four rock stars are embarking on a world tour. NASA has announced that an airplane-sized “city killer” asteroid will skim past Earth today — one of four “hazardous” space rocks to ...

Most of Earth’s meteorites can be linked to just a few collisions within the asteroid belt between Mars and Jupiter, two new studies report, including a particularly cataclysmic impact event ...

Earth is constantly getting pummeled by meteorites. We are unaware of most of them, as they burn up in our atmosphere before they hit the ground. Every now and again, though, something larger gets ...

Satellite megaconstellation operators are getting a lot of flak from atmospheric scientists lately for polluting Earth's upper atmosphere. But is the criticism justified? Who is the biggest ...

When it hit Earth, it blew a Maryland-sized hole in the crust, igniting global firestorms and killing off some 75 percent of species. For the dinosaurs it drove to extinction, the event was ...