By Dale DenwaltStaff writer ddenwalt@oklahoman.comIn the 50 years since Neil Armstrong planted his boots firmly on the lunar surface, no single event has captured the world’s admiration quite as much as the Apollo 11 mission. An estimated 600 million people watched the first grainy images of a fellow human exploring another world, captivating the public and earning front-page newspaper stories for weeks. And despite another five decades of incredible achievements that include successful Mars rover missions, deep-space probes exploring the furthest reaches of our atmosphere and nearly 19 years of continuous presence in space aboard the International Space Station, Apollo 11 remains the high-water mark for the public’s interest in space flight. In a sense, space travel has become routine. “Space was fairly new,” said Gen.Read more on NewsOK.com