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

Unprecedented simulations show the formation of space tornadoes capable of causing strong geomagnetic storms around Earth, calling for earlier and more accurate warnings.

The widespread death of coral reefs is the first in a series of catastrophic and potentially irreversible tipping points the world may hit, according to a landmark report produced by 160 scientists ...