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

The simulation of the Solar System that came the closest to the observation was the presence of a small planet, between the ...

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

A recent study by Princeton University astronomers suggests the possible existence of a previously undetected planet in our ...

Astronomers have found new evidence, revealing the existence of an unseen and mysterious planet that could be hidden in the solar system. The new research study which is published in the ...

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

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

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?