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Climate models are complex, just like the world they mirror.

NASA plans to send the ISS into Earth's atmosphere in 2030, and it has no plans for a replacement — at least, not directly.

On Sept. 17, 1789, the British astronomer William Herschel discovered Saturn's "Death Star" moon, Mimas.

The turning point seems to have been after 2008, which had the lowest amount of solar activity on record.

Astronomy isn’t just about distant stars; it’s also about the human effort here on Earth that makes it possible to extend our vision out into the cosmos.

Find out what's going on at the International Space Station.

Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.

The next solar eclipse will be on Sept. 21, 2025.

"Without satellite-enabled communication and precise location identification, this rescue could have stretched from hours into days."

A hidden magnetic island inside a coronal hole unleashed a surprise G3 storm, sparking dazzling displays across the US.