Catastrophe
The vanished Red Sea and the catastrophic flood that brought it back
Researchers found that 6.2 million years ago, the Red Sea dried completely and was then suddenly reflooded, marking one of Earth's most extreme environmental events.
Could a cosmic catastrophe have altered earth's ancient climate?
Researchers found shocked quartz indicating a comet explosion linked to megafaunal extinctions and the clovis culture's collapse.
Doomsday clock moved to 89 seconds to midnight, closest ever in its 78-year history
Scientists cite nuclear risk, climate change, and AI as factors increasing global threats.
