S66-44886 (1 Aug. 1966) --- Four panels of experiment S-10 carried on the Agena Target Vehicle launched for the Gemini-8 mission. This package of test panels was retrieved from the Gemini-8 Agena by astronaut Michael Collins during the Gemini-10 mission. Experimenters expected micrometeorites to bombard the panels during their stay in space. Photo credit: NASA