1973 Press Photo Skylab Astronaut Jack Lousma on Exercise Bike after Flight

USS New Orleans - Happy rider - Skylab astronaut Jack Lousma wears a smile as he begins a ride on the odometer bicycle which helps determine the amount of work astronauts are able to perform back in the gravity of Earth after 59 days in the weightless environment of Skylab. Jerry Homock, left, and Dr. John Rummel, right, check placement of sensors as the ride begins.

Photo is dated 1973.

Photo measures 8 x 10.5 inches.