Ancient kauri trees capture last collapse of Earth’s magnetic field

Earth's magnetic field flipped 42,000 years ago, creating a climate 'disaster'

A hovering, rocket-powered Skycrane will lower Perseverance to Mars' surface today. And although NASA once considered the idea too wild, eventually, former NASA administrator Mike Griffin said, “I still think it’s crazy, but it might be crazy enough to work. It might be the right kind of crazy.”

Our impact on Earth’s ecosystems and biodiversity – in graphics