The dwarf planet Makemake, which chills out in the deep freeze of the outer Solar System, might be home to an ice volcano 1.

For a long time, children learning about space in school were taught that there were nine planets in our solar system. Then, ...

The changing faces of Pluto| This is the most detailed view to date of the entire surface of the dwarf planet Pluto, as ...

Ever since Pluto was demoted from planet status, astronomers believe a real Planet Nine exists in the solar system ...

Ever since William Herschel discovered Uranus in 1781, astronomers have been eager to find new planets on the outer edge of ...

In a study published Wednesday in the journal Nature, astronomers describe the youngest transiting planet ever found. It’s ...

A large planet has been spotted orbiting a dwarf star that is just 3 million years old, offering possible clues to how the ...

Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy ...

In the time Pluto was found, classified as a planet and reclassified as a dwarf planet, it has not completed one orbit. One ...

In a major yet surprising turn of events, astronomers have recently discovered a newborn planet orbiting around a young ...

It must have cleared all other celestial bodies, except its own moons, from its orbit.

On a small dwarf planet called Makemake, astronomers have seen signs of surprising temperature changes. These could indicate that the tiny world, which is about 45 times further from the sun than ...