• Comet – A mass of ice, rock and dust which often has a tail. The tail is made up of water vapor, dust and various gases which vaporize and grows as it gets closer to the sun. • Asteroid – A body ...

For centuries, space rocks have fascinated us. Space and its elements have always been mysterious. Astronomy is riddled with complex jargon that many of us don’t understand. However, we often keep ...

It’s that time of year again, and the peak of what’s revered as the “best meteor shower of the year” is approaching. Meteor showers occur when Earth passes through streams of debris left behind by ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. After months ...

A new study reveals that the asteroid belt is slowly disappearing, offering insights into its long-term fate and what this ...

The Perseid meteor shower above the Kusca fairy chimneys in Turkey, on Aug. 12. (Ercin Erturk/Getty Images) Although the Perseid meteor shower peaked late Tuesday night into early Wednesday ...

The Eta Aquarid meteor shower will light up the sky Monday, May 5 with a chance to see pieces of Halley's comet streak through the night sky. Here's what to know and when to watch. The annual Eta ...

Although the Perseid meteor shower peaked late Tuesday night into early Wednesday morning, stargazers can still catch a glimpse of the meteors until Aug. 23. The Perseid shower, which has been ...

Summer's most dazzling meteor shower, the Perseids, peaks soon. This year, a bright moon will dampen viewing at the time of peak early Wednesday morning, so some experts recommend waiting a week or ...