Low wind shear and warm ocean temperatures exist in the Pacific now. That's why Haiyan grew into one of the strongest - perhaps the strongest - storm ever recorded.
When a team of astronomers discovered two black holes in a collection of stars known as a globular cluster, they weren't sure if the black holes’ presence was a common occurrence or a unique stroke of luck.
Mammal body size decreased significantly during at least two ancient global warming events. A new finding suggests a similar outcome is possible in response to human-caused climate change.