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

The exact height of the jet is unclear. However, it likely reached around 50 miles above Earth's surface. (Image credit: NASA) Gigantic jets are massive lightning bolts that shoot upward from ...

In the mid-1990s, scientists made a discovery that shook up the understanding of life on Earth: vast reservoirs of microbes can be found beneath the planet’s surface, often buried kilometers ...

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.

NASA just beamed a cat video to Earth from 19 million miles away in space 00:50 - Source: CNN. NASA just ... Sign up for CNN’s Wonder Theory science newsletter.

The rotation of Earth’s inner core may have paused and it could even go into reverse, new research suggests.. The Earth is formed of the crust, the mantle and the inner and outer cores. The ...

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. Skip to main content Open menu Close menu ...

2 Chinese spacecraft just met up 22,000 miles above Earth. ... China's Shijian-21 and Shijian-25 satellites had been moving toward each other in geosynchronous orbit, around 22,236 miles ...

Set to launch no earlier than June 2028, the telescope is designed to discover 90% of asteroids and comets that are 460 feet in size or larger and come within 30 million miles of Earth’s orbit.