Live Science on MSN

'Planet Y' theory hints at hidden Earth-size world lurking in the solar system — and it could be much closer to us than 'Planet Nine'

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

Planet Y? Astronomers find fresh clues of hidden world in our solar system

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

NASA has a wild plan to return astronauts to the moon. Here’s why experts are starting to worry

Calls for the US to land astronauts back on the moon before China have been increasingly loud and frequent. But it all hinges ...

Black hole collision confirms decades-old predictions by Einstein and Hawking

Astronomers detected in unprecedented detail a collision between two black holes. Their observations confirm predictions made ...
The Daily Galaxy on MSN

40 Rocket Launches for One Moon Mission? NASA’s Wild Bet on Starship Explained

The global race to return humans to the Moon is accelerating, and the United States is betting big on SpaceX’s colossal Starship rocket. As reported by CNNon October 12, 2025, China is advancing ...