Ordovician Meteor Event
Azimuth 2019-09-25
Summary:
About 1/3 of the meteorites hitting Earth today come from one source: the L chondrite parent body, an asteroid 100–150 kilometers across that was smashed in an impact 468 million years ago. This was biggest asteroid collision in the last 3 billion years! Here is an L-chondrite: A chondrite is a stony, non-metallic meteorite that […]