As technology continues to progress, though, could we uncover a new one? Astrophysicists don't know if there are ...

Astronomers have been curious about the makeup of Ceres, the largest object in the asteroid belt, ever since its discovery by ...

Recent data from the James Webb Space Telescope (JWST) suggests that a planet orbiting a small, red star 35 light years away ...

All five planets will be spread out along the ecliptic—the plane of the solar system upon which all planets orbit closely to. Be outside looking east at around 5:00 a.m. and you’ll see Jupiter ...

Small in comparison to the gas planets found further from the Sun, they also rotate at a more sedate pace and have few moons… The four rocky planets are Mercury, Venus, Earth and Mars.

Things have been a mess since Pluto's demotion. In 2006, the International Astronomical Union (IAU) voted on the definition of a planet. Famously, Pluto no longer met the criteria and was demoted ...