Curtin University researchers use innovative techniques to date three-billion-year-old impact crater in Pilbara region A meteorite that struck Earth three billion years ago left behind a “smoking gun” – evidence of the world’s oldest impact crater in a remote part of Australia. Ancient rocks in Western Australia’s Pilbara region record the event, which occurred during the Archean eon, a period 4 to 2.5 billion years ago, when tectonic plates were beginning to form and early life emerging. Continue reading... from The Guardian https://ift.tt/vFNkr3E via IFTTT
Scientists find even modest amounts of exercise appear to delay brain changes and cognitive decline in patients
Even modest amounts of daily exercise may slow the progression of Alzheimer’s disease in older people who are at risk of developing the condition, researchers have said.
People are often encouraged to clock up 10,000 steps a day as part of a healthy routine, but scientists found 3,000 steps or more appeared to delay the brain changes and cognitive decline that Alzheimer’s patients experience.
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