Discover the order of planets in the solar system. From Mercury to Neptune, explore our solar system and learn more about our cosmic home. The solar system is our cosmic neighborhood, made up of ...

Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they ...

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?

A 9th planet in our solar system might be found — and no, it’s not Pluto - Is there another planet out there? Researchers say ...

Discovered in 1930, Pluto was long considered our Solar System's ninth planet, but was unseated in 2006 after the discovery ...

Apr. 15, 2025 — A new study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune ... of the most common types of planets outside of our solar system, according to a new ...

It could also make our solar system seem a little more 'normal.' 'Surveys of planets around other stars in our galaxy have ...

Astronomer Eliza Kempton said that she had waited her "entire career" to peer into an atmosphere from this mysterious class ...

A half-ton spacecraft launched by the Soviet Union 53 years ago is expected to fall back to Earth this weekend.

The exoplanet 2M1510 (AB) b makes an unusual orbit around a pair of brown dwarfs, objects bigger than gas-giant planets but ...

A meteorite found in Antarctica in 2012 suggests Earth may have formed with the materials needed to make water, a new study ...

NASA’s Lucy spacecraft captures asteroid Donaldjohanson, marking a new step in its mission to explore the solar system’s ...