The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Canadian astronomers have taken an extraordinary step in understanding how planets are born, using the James Webb Space ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet ... could reshape our understanding of the Earth-Moon system and the broader solar system.

A new study is offering a clearer picture of how planets are born alongside stars, with the lead researcher from British ...

The organic ingredients to life, hints to where Earth’s water came from, and the fundamental building blocks of our planet ...

This may explain the strange properties of the orbits of our solar system's planets, which are not quite perfectly circular, and all lie on slightly different planes. NASA artist’s conception of ...