How Did the Solar System Form? The tale of our sun may begin with another star: a predecessor whose fiery death brought about the birth of our solar system.

– Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in our solar system. This happened about 4½ billion years ago.

New work from Carnegie’s Alan Boss and Sandra Keiser provides surprising new details about the trigger that may have started the earliest phases of planet formation in our solar system. It is ...

The origin of the differing tilts in the orbits of the planets in our solar system may have been revealed through the ...

Astronomers have recently detected a colossal object at the edge of our solar system, sparking excitement and curiosity ...

Tour of Our Solar System Tour of Our Solar System Embark on an immersive journey through our solar system, from the huge mountains on Mars to the swirling clouds of Jupiter and more! We’ll explore the ...

In a significant breakthrough, astronomers have identified an asteroid boasting its own ring system, a feature previously assumed to be exclusive to giant planets. This extraordinary celestial body ...

The textbook picture of how planets form—serene, flat disks of cosmic dust—has just received a significant cosmic twist.

Where is our solar system’s super-Earth? The planets astronomers see often around other stars are strangely absent from our own solar system. We’re still figuring out why.

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one day resemble our own.

Since the first discovery of planets beyond the solar system in 1995, more than 6,000 exoplanets have been identified. Many ...