1992 – 16:40 GMT – Launch aboard Delta rocket at Cape Canaveral of EUVE Extreme Ultra-Violet Explorer; mapped galactic EUV sources. The Extreme Ultraviolet Explorer was switched off on February 2, 2001. The sky survey was completed in January 1993 and after that the EUVE was used by guest astronomers for observations of specific targets. EUVE was pointed away from the Sun and sent into safehold at 2359 GMT on January 31. 2001 The transmitters were commanded off on February 2.