Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Astronomers may have found a candidate for Planet Nine. This planet is beyond Neptune. The finding could be the first ...

Based on the candidate object's brightness in the IRAS and AKARI images, Phan estimates that the object, if it really is ...

For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

This strange exoplanet, located 140 light-years away from Earth in the constellation Pegasus, appears to be rapidly falling ...

Can I learn the order & size of the Planets? @JackSucksAtLife @JackSucksAtStuff @JackMasseyWelsh @JackSucksAtClips on ...

Earth" planet was discovered by researchers. It is not believed these planets are more common than previously thought.

The planet is "crumbling to pieces," shedding the equivalent of Mount Everest’s mass every 30.5-hour orbit and will be ...

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