BierdopjeV3 Alpha nu beschikbaar. Wil je helpen? Kijk dan hier

Naked Science - Tsunami from Outer Space

Seizoen: 2009 - Aflevering: 16 / 109 - Eerst uitgezonden: 09 juli 2009 - Episode ID: 621053

NASA says that large meteors -- several hundred to a few thousand feet wide -- hit the Earth every 50 to 100 thousand years. Dr. Ted Bryant and his colleagues disagree; they think such massive impacts happen much more often. And this group of scientists may have found signs that a meteor hit the ocean and produced a mega-tsunami that devastated Australias coastline -- only 500 years ago. National Geographic joins the team as they scour the coastline and the ocean floor trying to prove that cosmic impacts, and the mega-tsunamis that result, have happened far more frequently, and much more recently, than anyone ever thought.