In 2020, Philipp Heck’s team dated forty presolar grains from Australia’s Murchison meteorite and found stardust as old as seven billion years, older than the Sun, Earth, and every solid material ever measured on this planet (opens in new tab)

On September 28, 1969, a fireball broke apart over Murchison, Victoria, and dropped black stones across roughly 35 square kilometres of Australian farmland. Museums Victoria records about 100 kilograms of the meteorite recovered, with more than 80 kilograms now held in scientific collections. One piece punched through a roof and landed in hay. The town […]