Siraj’s Planet Y search started about a year ago when he was trying to find out whether the shape of the Kuiper Belt is flat.

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

If you think you've met the wildest exoplanet yet, you haven't learned about TOI-4507 b. This strange world breaks almost ...

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

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

Could a lonely planet wander aimlessly through the restless galaxy change the subtle dance of gravity within our solar system ...

Astronomers believe they may have uncovered evidence of a hidden Earth -size planet lurking in the outer solar system. Dubbed “Planet Y”, the proposed world could be nearly twice as close to Earth as ...

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

Red dwarfs are the most common stars in our galaxy, and understanding how planets form around them is therefore essential.

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 ...

Just as Earth orbits the sun, most planets discovered beyond our solar system orbit a host star. But some are out there all ...