NASA stands as the symbol of Human Quest and desire to look beyond boundaries - be it to set a foot on moon or send man-made objects to end of the universe or to build a Castle in the Space . All some great events and achievements are summed up in this video - watch and drop your views ...

NASA : Why do we explore? Simply, it is part of who we are, something we've done throughout history. NASA's new video, "We Are the Explorers," looks at that tradition of reaching for things just beyond our grasp, and how it's helping lay the foundation for our greatest journeys ahead.