40 years after the first landing on Mars, this NASA scientist looks to resurrect Viking 1's analog data

 It’s been four decades since the Viking 1 lander touched down on Martian soil, the first lasting human presence on the surface of the Red Planet. It beamed its unprecedented data back to NASA, where it was stored on the hot new format of the day: microfilm. Now one scientist wants to bring these analog records into the digital world — for posterity and for science.