During Apollo missions, carbon dioxide expelled by the astronauts' breath was removed by lithium hydroxide cartridges in command module and lunar module. Apollo 13 infamously had a problem with adapting the CM cartridges for the LM, and engineers back in Houston improvised an adapter from materials available on the spacecraft:
- command module LiOH canisters
- lunar module suit hoses
- liquid cooling garment bag
- flight procedure cover
- adhesive tape
Did either the adapter -- or parts of it -- return back to Earth? If so, are they on display somewhere? Leftover pieces of the above items which were not used for the actual adapter don't count.
This is the last day of a series honoring the 50th anniversary of Apollo 13, "NASA's finest hour". The mission splashed down safely on April 17, 1970.