Where Mercury astronauts John Glenn and Scott Carpenter were joined for the 50 Years of Americans in Orbit presentation for employees.

It's "standing room only" in the training auditorium at NASA's Kennedy Space Center in Florida, where Mercury astronauts John Glenn and Scott Carpenter were joined by NASA Administrator Charles Bolden and Center Director Bob Cabana for the "50 Years of Americans in Orbit" presentation for employees.

This year marks 50 years since Glenn and Carpenter became the first two Americans to orbit Earth. Photo credit: NASA/Kim Shiflett