An astronaut on the moon looking at an Earth-based clock ... the tiny discrepancies can make a huge difference when calculating safe rocket landings, mission schedules, and more.

Our moon goes through phases, sometimes turning red or disappearing into shadows. Here's what you need to know about the full moon. Amanda Kooser Freelance writer Amanda C. Kooser covers gadgets ...

It returned in early January, whizzing by at a safe distance of 1.1 million miles (1.8 million kilometers), or about five times as far from our planet as the moon is. It then moved on to continue ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The past few years ...

As 2025 begins, so comes the first full moon of the year. 2025's first full moon will be the last of four consecutive supermoons, according to NASA. But it's a pretty eventful lunar phase.

The next and first full moon of the year, also known as the Wolf Moon, will be in peak view on Monday. January's full moon will reach peak illumination at 5:27 p.m. ET on Monday, according to NASA.