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

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 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.

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

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

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 ...

In a new study published in the journal Research Notes of the American Astronomical Society, astronomers report the discovery ...

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

Astronomers have found yet another quasi-moon companion of Earth in its orbit around the Sun believed to be a chunk of our ...

Because of the sun's positioning in the days just before, during and after the equinox, those looking down east-west roads in Chicago and the suburbs will be able to see the sun framed by much of the ...

Three celestial bodies are preparing to meet up for one night in September in a cosmic conjunction that should be widely ...

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