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

For almost a decade, astronomers have been searching for a ninth planet in the solar system. Recently, new evidence of ...

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

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

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

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

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...

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

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

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

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

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its nebular gas had been consumed—Earth's solar system and its planets looked more ...