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

The planets in our solar system orbit the sun essentially along the same line across the sky in a plane called the ecliptic. For that reason, planets in our Earthly sky always appear somewhere ...

Uranus' accidental discovery 240 years ago greatly enhanced our understanding of the solar system, doubling the size of the ...

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.

GJ 1214 b, nicknamed Enaiposha, is a planet discovered 47 light-years away that has been reclassified from a mini-Neptune to a "super-Venus" due to its atmosphere rich in carbon dioxide and aerosols.

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.