Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

“An Earth-like planet far beyond Neptune could redefine our understanding of the solar system,” says Lykawka. He adds, “It ...

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.

Have you ever wondered why all the planets in our solar system orbit the Sun in roughly the same flat plane? This fascinating phenomenon isn’t a coincidence but a direct result of how our solar ...

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 ...

Our Solar System hasn’t always had the arrangement of planets we see today. Past iterations put other planets through the wringer, and some of them got booted — including a long-lost alternate ...

Discovery of six-planet solar system wows astronomers. Ivan Semeniuk Science Reporter. Published November 29, 2023Updated December 1, 2023. ... This mathematical arrangement ...

The arrangement of Venus, Saturn and a slender crescent Moon will create a unique visual phenomenon resembling a smiling face in the sky, according to NASA/JPL Solar System Ambassador Brenda ...

A 9th planet in our solar system might be found — and no, it’s not Pluto. Is there another planet out there? Researchers say they have hints of a new candidate. Julia Musto. in New York.

Giving a Side-Eye to the Solar System All the major planets—and almost all of our space probes—obit above the Sun's equator, trapped in a sideways ... Far from the Sun there are whole families of ...

Scientists had long thought our own solar system—an “ordered” arrangement of tiny orbs closer to the sun and big ones farther out—was a typical outcome of this complex process.