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List of Thor-Agena launches

A Thor-Agena launch vehicle, ready to launch the Discoverer 37 (KH-3) spacecraft, on 13 January 1962

Thor DM-18 Agena or just Thor-Agena was a series of orbital launch vehicles. The launch vehicles used the Douglas-built Thor first stage and the Lockheed-built Agena second stages. They are thus cousins of the more-famous Thor-Delta, which founded the Delta launch vehicle family. The first attempted launch of a Thor-Agena was on 28 February 1959. The first successful launch was on 13 April 1959, launching Discoverer 2. It was the first two-stage rocket to place a satellite into orbit.[1][2]

  1. ^ "Thor Agena A". astronautix.com. Archived from the original on 27 December 2016. Retrieved 10 August 2021.
  2. ^ "Thor Agena B". astronautix.com. Archived from the original on 27 December 2016. Retrieved 10 August 2021.
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