Planet Nine, the undiscovered planet at the edge of the solar system that was predicted by the work of Caltech’s Konstantin Batygin and Mike Brown in January 2016, appears to be responsible for the ...

Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

Researchers at the California Institute of Technology (Caltech) have found new evidence that further suggests there is a ninth planet in our solar system. Nicknamed "Planet Nine," researchers said ...

Nearly a century after Pluto’s discovery, astronomers are still searching for mysterious planets beyond Neptune - including a ...

Scientists think there may be a ninth planet hiding in the distant reaches of the solar system — and a new telescope could finally prove its existence. | Credit: Nicholas Forder for Live Science Deep ...

On November 16, 2025, with the Sun stepping into Scorpio, a wave of change sweeps through the zodiac. This celestial shift ...

FILE - Artist's concept of a hypothetical planet orbiting far from the Sun. Nicknamed "Planet Nine," researchers said that the most recent data shows something big is able to pull objects from outer ...