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

When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary ...

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

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

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

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

The European Space Agency also hoped to observe the interstellar object during its close approach to Mars using two ...

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

Astronomers have discovered a distant dwarf planet orbiting beyond Neptune — a frozen world so far from the Sun that it ...

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

Interstellar comet 3I/ATLAS has caught the interest of astronomers and amateur enthusiasts alike as just the third object to ...