For a long time, scientists thought the Earth's inner core was a solid ball of metal, sort of like a planet within a planet that sits some 3,000 miles (4,828 kilometers) below the surface.

Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...

Look up what’s happening in your area. Earth’s warming could trigger sweeping changes in the natural world that would be hard, if not impossible, to reverse. The agency was created to protect ...

That’s not even close to the size of the “planet-killer” asteroid that slammed into Earth 66 million years ago and led to the extinction of dinosaurs. That one was estimated to be about 6.2 ...

Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids. NASA has a network of telescopes used to track near-Earth asteroids, like ...

Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds. Known as large low-seismic-velocity provinces (LLSVPs), these blobs are both hotter and ...

The odds of an asteroid hitting Earth in 2032 now stand at 1-in-32, or a 3.1 percent chance of collision, according to the latest data from NASA. On February 7, NASA upped the likelihood of the ...

A new theory suggests that gravity could possibly be the result of entropy. If true, this would mean that everything in the ...

By Robin George Andrews Astronomers on Tuesday said that the asteroid designated 2024 YR4 had become the most likely sizable space rock ever forecast to impact planet Earth. The object ...

The chances has more than doubled in a matter of weeks, officials said. The chances of an asteroid striking Earth within the next decade has more than doubled in a matter of weeks, according to ...