Russia's Popigai Meteor Crash Linked to Eocene Mass Extinction
• arcleinspace rock that slammed into Earth some 33.7 million years ago not only took a gouge out of the planet but also may be linked to the Eocene mass extinction, scientists say.
space rock that slammed into Earth some 33.7 million years ago not only took a gouge out of the planet but also may be linked to the Eocene mass extinction, scientists say.