fahrbot-bot shares a report from the BBC: Scientists analyzing a meteorite have found the oldest materials identified to exist on Earth. They discovered mud grains throughout the area rock — which fell to Earth within the 1960s — which can be as a lot as 7.5 billion years previous. The oldest of the mud grains have been shaped in stars that roared to life lengthy earlier than our Photo voltaic System was born. A workforce of researchers has described the outcome within the journal Proceedings of the Nationwide Academy of Sciences.
The workforce from the U.S. and Switzerland analyzed 40 pre-solar grains contained in a portion of the Murchison meteorite, that fell in Australia in 1969. Based mostly on what number of cosmic rays had interacted with the grains, most needed to be 4.6-4.9 billion years previous. For comparability, the Solar is 4.6 billion years previous and the Earth is 4.5 billion. Nevertheless, the oldest yielded a date of round 7.5 billion years previous. Beforehand, the oldest pre-solar grain dated with neon isotopes was round 5.5 billion years previous.
Learn extra of this story at Slashdot.