In the latest shutdown, the cosmic ray subsystem experiment on Voyager 1 and Voyager 2’s low-energy charged particle ...

Almost 20 years after Pluto was infamously downgraded from its status as a planet, scientists now believe they have discovered a new planet in our solar system. Tech. Smartphones; ...

For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...

JWST has confirmed Pluto’s bizarre atmospheric behavior and its ghostly interaction with Charon. These findings could reshape ...

Solar System Planets. Astronomy articles on the eight planets, plus the two dwarf planets, Pluto and Eris. Great pictures of everything in the solar system. Updated daily.

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system. The object—which orbits out beyond Neptune—has been named "2017 OF201" by the ...

There could be a ninth planet in our Solar System after all — and no, it’s not Pluto. Instead, it’s the theoretical Planet X, also called Planet Nine, a wide-orbit planet that would circle the Sun ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

It can skirt by the giant planets and their gravity can kick it out of the solar system, or Pluto can smash into one of them. Over the next 5 billion years, the chance of such an ejection or ...

Astronomers have revealed new research showing that millions of new solar system objects are likely to be detected by a brand-new facility, which is expected to come online later this year.

How long does it take Pluto to orbit the sun? Learn more about how this planet makes one lap around our Solar System.