NASA aims for four 2007 flights to space station

NASA will try to launch four space shuttle flights in 2007 to continue building the international space station, managers for the US space agency said Monday. The targeted launch dates in 2007 will be June 8 for Atlantis; August 9 for Endeavour; October 20 for Discovery and December 6 for Atlantis. NASA managers had hoped to squeeze five shuttle flights into 2007 at the beginning of the year, but a postponement in launching Atlantis made that impossible and created a domino-effect in launch delays for the rest of the year.