NASA astronaut Nichole Ayers photographed a rare atmospheric phenomenon over the US and Mexico known as a "sprite" that's associated with lightning.

Most observed gigantic jets reach the ionosphere — the part of the atmosphere that begins around 50 miles above Earth's surface and contains charged particles captured from the sun.

On July 3, 2025, at 3:54 pm ET, the Earth will officially reach its furthest point from the Sun for this year. This is called ...

From extreme climates to peculiar creatures, here are some top facts about Earth.

So why does the U.S. government award astronaut wings at 50 miles up, instead of at the 62-mile mark of the Kármán Line?

The rotation of Earth’s inner core may have paused and it could even go into reverse, new research suggests.

See that little dot up there, in the upper right of that photo? That’s the planet Earth, as photographed from about 3.7 billion miles away 35 years ago Friday, on Feb. 14, 1990.

Atmospheric water vapor absorbs solar radiation and re-emits it as heat; with tens of millions of tons of Tonga's moisture now adrift in the stratosphere, Earth's surface will be heating up ...

Earth probably won't get hit by an asteroid at least 0.6 miles (1 kilometers) wide in the next 1,000 years, a new study finds.

Engineers have mitigated an issue with Voyager 1’s thrusters, enabling the mission to stay in touch with mission controllers on Earth and send back unique data.

The images were taken between 3:50 and 8:45 p.m. EDT on July 16, according to NASA. DSCOVR is orbiting a whopping 1 million miles from Earth, making this a remarkably long-distance shot of the planet.

The encounter is an out-of-this-world example of right place, right time — as Mars zips past Jupiter, Earth will be in the perfect spot to see the two planets look as if they are within arm's reach.