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 ...

Planet 9 sits at the edge of scientific imagination, promising either an epic expansion of the Solar System or a lesson in ...

Beta Pictoris b is a young exoplanet about 12 times as massive as Jupiter, with an orbit nearly twice as long. Now, a timelapse video of the planet’s nearly 23-year orbit lets you see most of that ...

CAPE CANAVERAL, Fla. — A super Jupiter has been spotted around a neighboring star by the Webb Space Telescope — and it has a super orbit. The planet is roughly the same diameter as Jupiter, but with ...