on jul. the 16th, 1969 the author of mars is there, waiting to be reached. partook in what space mission?
(AND spaceflight.space_mission (AND (JOIN (R spaceflight.astronaut.missions) (JOIN (R media_common.quotation.author) m.0cjhh1_)) (ge time.event.start_date 1969-07-16^^http://www.w3.org/2001/XMLSchema#date)))