Space Guard , Planet defence system

Spaceguard It is past time to get serious about planetary defense, The threat of Earth being on the receiving end of a cosmic calling card in the form of an asteroid or comet is real. There is no question that an asteroid has Earth's name on it. But where the rock is and when that impact is going to occur is unknown. The threat posed to mankind by an impact of an asteroid or comet …

…paradoxically making a NEO search a lower priority than the rebuilding of civilisation. By conducting a serious NEO search now we can provide future generations with otherwise unobtainable information which may prove crucial to their survival - a rare gift to the future from the people of the 20th Century. Biography http://www.space.com/scienceastronomy/planetary_defense_040225.html http://www.spaceguarduk.com/intro.htm http://www1.tpgi.com.au/users/tps-seti/sg_prop.html