The object dubbed Earth's "second moon" is actually a quasi-satellite that's accompanied the planet since 1957 — not a true moon.

Earth’s atmosphere is slowly leaking into space, and new research shows some of it reaches the Moon, where it may be preserved in lunar soil.

The moon will appear slightly larger and brighter Monday night during what's known as a supermoon. October's supermoon is the first of three this year. It happens when a full moon is closer to Earth in its orbit. That makes the moon look up to 14% bigger ...

Earth's quasi-moons are not actually moons, but temporary asteroids that eventually leave Earth’s orbit JPL-Caltech/NASA A new "quasi-moon" named 2025 PN7 has been discovered, according to a newly-released paper Scientists out of a Hawaii observatory ...

What can you see when you look up?

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. The moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure ...

NASA astronaut Butch Wilmore explains what led to the Artemis II delay and how setbacks affect the crew preparing for the lunar flyby mission.

NASA has been forced to delay a critical fueling test for its Artemis 2 moon rocket due to unusually cold weather forecasted to hit the Space Coast this weekend.