Thirty years ago, the Space Shuttle Challenger broke apart in midair, only 73 seconds after it launched. All seven crew members were killed, including Christa McAuliffe, a teacher who joined the crew as a payload specialist as part of NASA's "Teachers in Space Project." Her memory, as well as that of her fellow crew members, is being honored by the all-female crew of the HERA IX mission, a simulated mission at NASA's Human Exploration Research Analog. The month-long mission will simulate a mission to a near-Earth asteroid for the purpose of researching the human impacts of space travel, as well as providing educational outreach to students. Read more at 3DPrint.com: http://3dprint.com/116794/30th-anniversary-challenger/