Cave diver explores a Mexican sinkhole in atmospheric photograph
Cave diver exploring Chan Aktun HaMartin Broen The Yucatán peninsula in south-east Mexico is riddled with holes. When a giant asteroid struck Earth 66 million years ago near what is…
Cave diver exploring Chan Aktun HaMartin Broen The Yucatán peninsula in south-east Mexico is riddled with holes. When a giant asteroid struck Earth 66 million years ago near what is…
A replica of the Welcome Stranger, a gold nugget weighing almost 100 kilograms found in Australia in 1869Ian Dagnall/Alamy Earthquakes may cause gold nuggets to form in quartz by generating…
The oldest known piece of Earth? A 4.4 billion-year-old zirconJohn Valley, University of Wisconsin-Madison Until recently, many discounted the idea that life could have existed on Earth before 3.8 billion…
A sample of rock from Earth’s mantle viewed under a microscopeJohan Lissenberg In the middle of the North Atlantic Ocean, geologists have burrowed 1268 metres below the seafloor – the…
The concept of the Anthropocene was born at a scientific meeting in Mexico in 2000, conjured by chemist and Nobel laureate Paul Crutzen. “We aren’t in the Holocene any more,…