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

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 ...

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

To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of ...

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 ...

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

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

An alternate explanation that fits the evidence is that Vesta was once part of a planet – but which planet that might been ...

Kosmos-482, a spacecraft bound for Venus in 1972, was a time capsule from the Cold War when superpowers had broad ambitions for exploring the solar system.

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

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 ...