FRANKFURT (Reuters) - Europe launched four more Galileo satellites on Thursday, moving a step closer to having its own navigation system and marking the first time it has sent up so many satellites at once.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=rcS7ceRXS2w:gnVIfv3ivXw:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=rcS7ceRXS2w:gnVIfv3ivXw:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=rcS7ceRXS2w:gnVIfv3ivXw:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=rcS7ceRXS2w:gnVIfv3ivXw:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=rcS7ceRXS2w:gnVIfv3ivXw:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/rcS7ceRXS2w" height="1" width="1" alt="" />