have you ever wondered who nasa langley research center, langley air force base, u.s.s. langley, and langley, virginia were named after? it was one person: samuel pierpont langley. undaunted: the forgotten giants of the allegheny observatory tells the inspirational stories of the nearly forgotten scientists and inventors such as samuel langley and john brashear. these people made world-changing discoveries and innovations and yet have been nearly forgotten to history. the film tells the surprising stories behind the birth of astrophysics, solar research, the invention of aviation, and john brashear's contribution to the famed michelson-morley experiment that led to acceptance of einstein's theory of special relativity.