Saturn now leads the solar system with 274 known moons. Scientists say many moons formed from past collisions.

The eight planets in our solar system orbit the sun in roughly the same plane because they all originally formed from the same disc of debris around the sun. The line the sun traces across the ...

GJ 1214 b, nicknamed Enaiposha, is a planet discovered 47 light-years away that has been reclassified from a mini-Neptune to ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

In research highlighted in a new paper, published today in The Astrophysical Journal, Scientia Senior Lecturer Ben Montet and PhD candidate Brendan McKee analysed changes in the timing of a known ...

Interestingly, they'll always appear along the same arc in the night sky. That path is called the ecliptic, and it exists because all planets in our solar system orbit around the sun on roughly the ...

A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system ...

Using the giant models and showing the scale of how giant and huge our solar system is really helps to hit home on that,” said lead teacher of Ohio and Kentucky’s Orbit Earth Expo, Pete Dunlap.

A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new study.