Giant meteorite that hit Earth 3 billion years ago may have helped life thrive: Study USA TODAYWhat happened when giant S2 meteor hit Earth 3 billion years ago? Harvard GazetteGiant meteorite strike may have helped life thrive on Earth, research suggests Sky NewsAncient meteorite may have sparked life on Earth, research finds NBC NewsMeteorite that hit Earth 3 billion years ago dwarfed rock that caused dinosaur extinction: study CBC.ca