A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

A mysterious space object named 2023 KQ14, nicknamed “Ammonite,” challenges theories about the mysterious and possible Planet ...

WASHINGTON (Reuters) -Just as Earth orbits the sun, most planets discovered beyond our solar system orbit a host star.

Astronomers have found new evidence, revealing the existence of an unseen and mysterious planet that could be hidden in the ...

WISPIT 2b, a gas giant five times more massive than Jupiter, is the first planet of its kind to be observed growing inside ...

A recent study introduces a potential new candidate, dubbed Planet Y, inferred from the tilted orbits of distant objects in the Kuiper Belt.

Astronomers have discovered fresh evidence suggesting the possible existence of an unseen planet in the far reaches of our ...

While Planet Y has been not yet been directly observed, unexpected inclinations found in the orbits of roughly 50 distant ...

Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other ...

A team of scientists has found a new planet which orbits the wrong way around its host star. The planet, named WASP-17, and orbiting a star 1000 light years away, was found by the UK’s WASP project in ...

Space scientists look back on 30 years of exoplanet discoveries — from rows of massive ‘super-Earths‘ to worlds with ...