Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

The James Webb Space Telescope has detected a possible gas giant the size of Saturn in the stellar system nearest our own ...

Researchers at UC Santa Barbara, The University of Texas at Austin, Yale University and National Taiwan Normal University ...

Alpha Centauri A, four light-years from Earth, may host a gas giant. If confirmed, no Earthlike planets orbit in the star’s habitable zone.

Even in the (many) cases where passing stars did not trigger a planetary instability, they still gave slight nudges to the orbits of the giant planets, particularly Uranus and Jupiter.

A bizarre planet defies cosmic norms: scientists have confirmed a giant planet orbiting in reverse around one star in a close ...

A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery challenges long-standing ideas about how planets form and orbit in the ...

The planet 2M1510 (AB) b orbits two stars — like Luke Skywalker’s home planet of Tatooine, for the Star Wars fans — but it does so in a highly unusual way.

But even if it doesn't spot Planet 9 directly, the Rubin Observatory might find some more minor planets, ones whose orbits might be affected by Planet 9. And that could provide additional evidence ...

In the "Star Wars" universe, Luke Skywalker famously came from the planet of Tatooine, which had two suns and double sunsets. Tatooine is in a circumbinary orbit, which means that it doesn't orbit ...