While Not Imminent The Threat Is Real - A Grand Challenge Has Been Announced By NASA

20/06/2013 09:05

19 June, 2013

MessageToEagle.com - Approximately 4,700 asteroids are close enough and big enough to pose a risk to our planet, according to NASA estimation.

According to 2005 Congress directions: "detect, track, catalogue and characterize the physical characteristics of NEOs equal to or greater than 140 meters in diameter", NASA leads the world in the detection of NEOS. [Read more] ...