Earth has a newly discovered—albeit temporary—companion in its journey around the sun. In research published this month in ...

Did you see the bright star next to the moon? That was Venus, and part of a conjunction between the moon, Venus and the star ...

Is it a full moon tonight? Wondering what is the planet and bright star shining next to the moon? Here's what to know and how ...

Asteroid 2024 PT5 is considered Earth's mini-moon and may be a key target for potential asteroid mining operations.

A recently observed object called 2025 PN7 was found orbiting near the Earth. The quasi-moon is expected to accompany our ...

Earth is the only planet in our solar system with a single moon, making it a rare phenomenon for a planet of its kind.

The Earth stands alone in the solar system as a habitable world, as far as we know. But that doesn’t mean we don’t get visitors, most often in the form of (usually harmless) asteroids. Some even ...

Saturn will put on a show for professional and backyard astromers alike, and be the brightest and closest it has been to ...

September will have a trio celestial conjunction. Here's how to see the moon and Venus together in Arizona and upcoming alignments.

Our planet has apparently had a small companion that went undetected for decades. What took so long to find it and why was it hidden?

The moon and Venus will shine vividly alongside a bright star in the early morning in a celestial rendezvous that should be visible across the U.S.

Astronomers have identified a tiny quasi-moon, 2025 PN7, orbiting near Earth for about 60 years. This 62-foot-wide near-Earth ...