Castor and Pollux (French satellites)A pair of French microsatellites, also known as D5A and D5B, launched unsuccessfully on May 21, 1973, by a Diamant B from Kourou. Castor was to have studied interstellar space and collected aeronomy and geodesic data; Pollux was to have tested a hydrazine propulsion system. Related category SATELLITES AND SPACE PROBESAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |