Scientists uncover giant asteroid crater hiding in plain sight, and it changes everything

Scientists have found a huge 900-meter-wide asteroid crater in Guangdong Province, China, three times more massive than the previously largest called Holocene crater. Despite the areas severe rainfall and humid weather, the structure continued to be well preserved, enabling researchers to confirm it as a meteorite impact. They detected shock-produced planar deformation features in quartz, giving evidence of its extraterrestrial origin.