But the researchers don’t know why two hit Earth close together. Getty Images The asteroid that created the Nadir crater measured around 450-500m wide, and scientists think it hit Earth at about ...

Researchers have imaged a hidden scar, which is the evidence of a cataclysmic event that impacted Earth millions of years ago. This is the 9-km wide (5-mile) Nadir Crater. It’s a massive impact ...

The 5-mile-wide Nadir Crater was found nearly a thousand feet ... but needed seismic data from the images to confirm what had made it. “It reveals this crater in three dimensions for the first ...