Earth still only has one true natural satellite — our 2,159-mile-wide moon oribiting about 239,000 miles away. However, ...

Something called a "quasi-moon" was discovered in August, and now many are wondering if we should count our new neighbor as a ...

The asteroid isn’t a second moon, instead it is a quasi-satellite that is trailing the Earth’s orbit around the sun. Unlike ...

Quasi-moons are not real moons and don't actually orbit the Earth, although they sometimes appear to do so for short periods of time, Phil Nicholson, professor of astronomy at Cornell University, told ...

As mankind was planning the first moon landing in the 1960s, an asteroid approached Earth—and still hasn’t left.

Astronomers say that Earth is going to get something new in the coming decades. The recently discovered asteroid 2025 PN7 has ...

2025 PN7 is a small, dim asteroid that appears to orbit Earth, according to EarthSky. Believed to be a piece of the moon that blasted out, the object has been in its orbit as a quasi-moon for about 60 ...

The Earth often gets a few visitors in the solar system, but some stick around for a while. Here's what to know about the ...

The October Full Moon, also known as the Harvest Moon or Hunter's Moon, rises today, marking the first supermoon of the year.