Earth’s oldest meteorite crater found in Australia
It was a respectable tenure, but the world’s oldest known meteorite site is no longer western Australia’s 2.2 billion-year-old, 43-mile-wide Yarrabubba crater. Researchers at Curtin University and the Geological Survey of Western Australia (GSWA) say the new recordholder is located about 660 miles north in the country’s Pilbara region.
but some of the very oldest items on Earth are barely visible to the naked eye. One example is a carbonaceous chondrite (a type of meteorite), also known as CAI in Allende. Scientists believe ...
On Feb. 24, 2014, scientists announced that a tiny zircon crystal from Australia, 4.4 billion years old, was confirmed to be ...
Now, scientists working in the Barberton Greenstone Belt in South Africa—where some of the oldest rocks on Earth are preserved—find evidence of terrestrial microbial life that they estimate is ...
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Earth is about 4.5 billion years old. Scientists think that by 4.3 billion years ago, Earth may have developed conditions suitable to support life. The oldest known fossils, however, are only ...
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