Launched by NASA in 1984 and taking part in milestone NASA missions thereafter – including deploying the Hubble Space Telescope in April 1990, and the Upper Atmosphere Research Satellite (UARS) in September 1991 – space shuttle Discovery today makes its final flight, atop a jumbo jet on its way to its new permanent home, to its final resting place the Smithsonian Institution. Now, the National Geographic is giving an all-too rare look inside the heat-proof shell of the craft, publishing online interactive ultra-high resolution, 360-degree pictures of the retired orbiter.