Scientists using NASA's James Webb Space Telescope have observed a rare type of exoplanet, or planet outside our solar system ...

An illustration depicts what the surface of one of the exoplanets orbiting Barnard's Star may look like. The other three planets within the system can also be seen. - International Gemini ...

Astronomers have confirmed a giant planet orbiting a tightly bound pair of young stars, marking a first in direct exoplanet ...

Mercury is the innermost and smallest of the eight major planets in our Solar System, orbiting closest to the Sun. Though only slightly larger than Earth’s Moon, Mercury endures some of the most ...

A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

The James Webb Space Telescope has detected two alien planets orbiting white dwarfs, the collapsed husks of once-mighty stars. The discovery offers a hint of what our solar system will look like after ...

Astronomers studying a disk of material circling a still-forming star inside our Galaxy have found a tantalizing result — the inner part of the disk is orbiting the protostar in the opposite direction ...

Astronomers have discovered a rare solar system with six planets moving in sync with one another. Estimated to be billions of years old, the formation 100 light-years away may help unravel some ...

(CNN) — Astronomers have discovered three previously unknown moons around Uranus and Neptune, the most distant planets in our solar system. (CNN) — Astronomers have discovered three previously unknown ...

The Sun has a new neighbor that was hiding in plain twilight. An asteroid that orbits the Sun in just 113 days–the shortest known orbital period for an asteroid and second shortest for any object in ...

2185_HamiltonSpectrographVogt © 2003 Laurie Hatch, image and text – Lick Observatory – Mt. Hamilton 2003 December 11 – The Shane 120" Reflector was the second ...