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Science warns of near Earth threats from asteroids and cosmic rays
NASA organizes a near Earth object program at JPL to locate 90 percent of 2000 near Earth asteroids about 1 kilometer wide by the decade's end. Astronomers warn of unseen daytime sky objects and discuss muons from cosmic rays, neutron star collisions, and their role in mass extinctions while planning exobiology strategies.
MENTIONED IN THIS ARTICLE
Ollywood
NASA
Jet Propulsion Laboratory
California
Earth
Donald Yeoman
JPL
University of Hawaii
David Tholen
Tunguska
Siberia
Meteor Crater
Arizona
Tholen
Technion - Israel Institute of Technology