800,000 Years Ago, a Meteor Slammed Into Earth. Scientists Just Found the Crater

800,000 Years Ago, a Meteor Slammed Into Earth. Scientists Just Found the Crater

by Mindy Weisberger, LiveScience

Scientists knew the impact happened; they just didn’t know where.

About 790,000 years ago, a meteor slammed into Earth with such force that the explosion blanketed about 10% of the planet with shiny black lumps of rocky debris. Known as tektites, these glassy blobs of melted terrestrial rock were strewn from Indochina to eastern Antarctica and from the Indian Ocean to the western Pacific. For more than a century, scientists searched for evidence of the impact that created these pitted blobs. 

But the crater’s location eluded detection — until now.

Geochemical analysis and local gravity readings told researchers that the crater lay in southern Laos on the Bolaven Plateau; the ancient impact was concealed under a field of cooled volcanic lava spanning nearly 2,000 square miles (5,000 square kilometers), the scientists reported in a new study. 

Read the full article here…

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