In total, Saturn is thought to have at least 274 moons, the greatest number of natural satellites in the solar system. After its opposition, Saturn will stay visible for many weeks, but each passing ...

While opposition itself is a one-night event, taking place on Sept. 21, Saturn's glow won't fade quickly. The planet will ...

Earth has a number of mini-moons and quasi-moons. Mini-moons are objects that orbit our planet. But they make for fickle fans: They tend to swing around Earth for only a matter of months. One example ...

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 to see it.

Regulus, a distant star, Venus and our moon will be visible during a conjunction tonight, and how Californians can best see it.

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 ...

Earth has a new friend — and it's been waiting for us to notice it for decades. In a new study published in the journal ...

Apophis will zoom safely past the Earth closer than the orbits of geosynchronous satellites on April 13, 2029. As well as the ...

Day and night will get equal time for a brief moment as the equinox arrives. The Earth will experience about the same amount of day and night on Monday when the autumnal equinox arrive.

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.

Scientists have found thousands of planets outside our solar system, called exoplanets, throughout the galaxy. This artist’s ...

Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, ...