By Ashley Strickland, CNN(CNN) — NASA’s Space Shuttle Challenger lifted off 40 years ago with an unusual crew. In addition to six astronauts, the mission took flight with a teacher on board. Even after the tragedy, family members of the Challenger astronauts wanted to carry on with a piece of their loved ones’ mission. “That’s where the idea came from,” Scobee Rodgers said in a video shared by the Challenger Center this month to mark the 40th anniversary of the tragedy. Through those connections, something born out of a tragic accident has become a celebration of what the Challenger crew stood for, Harris added.