Explorer 24: The Death Star Disco Ball Satellite
Once upon a time , NASA launch an inflatable disco ball into domain . For most four year , Explorer 24 was used to determine atmospheric concentration in all its polka - dot balloon nimbus . The 8.6 kilogram mass of aluminum foil and charge plate picture had an identical configuration toExplorer 9(launched in 1961 ) , andExplorer 19(launched in 1963 ) . For launching , the sphere was pack into a small tube , 21....