The Tunguska Impact - 100 Years Later
The Tunguska Impact - 100 Years Later
NASA Science News for June 30, 2008
One hundred years after the Tunguska event in Siberia, scientists review what they've learned about the mysterious blast from the heavens.
FULL STORY at:
http://science.nasa.gov/headlines/y2008/30jun_tunguska.htm?list1094208
