These icy bodies orbit the sun just like the major planets, yet they follow their own rules, often traveling along elongated ...

Rudy Frederick has been keeping an eye on the heavens for years, fascinated by what’s beyond the limits of Earth’s atmosphere ...

Have you ever wondered if there is life on another planet? Exoplanets may hold the key to this question.

It’s a cosmic season in Southern California; look for the unveiling of Griffith Observatory’s Celestial Globe, too.

In the bigger picture, “down” could be defined as being below the plane of the solar system, which is known as the ecliptic.

In the bigger picture, “down” could be defined as being below the plane of the solar system, which is known as the ecliptic. By convention, we say that above the plane is where the planets are seen to ...

Scientists on Earth use seismometers to get a more detailed picture of what the inside of the Earth is made of. Those seismometers record vibrations from earthquakes. The vibrations change depending ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact configuration and later underwent a violent reshuffling that scattered them to ...

Earth may owe some of its properties to a nearby star that blew up just as the solar system was forming. This pattern, which saw a supernova bubble envelop the sun and shower it with cosmic rays, may ...

It may not feel like it, but everything in the universe is in constant motion. Our Sun, with all its planets, orbits the center of the Milky Way, flying through the cosmos at around 450,000 miles per ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying itself, melting large portions of our planet’s mantle and ejecting a huge debris disk that later pulled ...

Jupiter, the largest planet in the solar system, may have been responsible for a mysterious age gap in the early solar system's planet building blocks. Credit: NASA / JPL-Caltech / SwRI / MSSS / Tanya ...