Io, roughly the size of Earth's Moon, is home to approximately 400 volcanoes that continuously erupt, contributing to its ...

A car-sized asteroid will pass at about half the distance between Earth and the moon tonight (Dec. 6), concluding a busy week ...

Despite having the wrong ideas about how the Moon’s craters formed, these 19th-century astronomers created highly accurate ...

Supermoons appear larger than the average full moon. It's similar to the size difference between a quarter and a nickel, according to NASA. Supermoons are also about 16% brighter than an average moon.

The final supermoon in a series of four will occur tonight—here are the best places in the U.S. to catch a glimpse.

The full Moon technically peaks early in the morning of Dec. 15, but you don't have to be watching at the very moment of its peak to see the Moon completely full. Between lunar libration and the ...

Here are the dates for the full moons in 2024. The next full moon will be on Sunday, Dec. 15. It will officially reach its full moon phase at 4:02 a.m. EST (0902 GMT) but local moonrise times vary ...

he added — a process hastened by the moon's smaller size. The moon's diameter of about 3,475 kilometres is a bit more than a quarter of Earth's diameter.