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, ...

Astronomers say they’ve discovered the most distant body ever observed in our solar system, a potential dwarf planet that’s about 11 billion miles from the sun. Its nickname? “Farout.” ...

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 ...

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

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

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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 ...