References archive

April 2013

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9 articles

April 26
- Lowell Observatory: Where Pluto Was Discovered
April 25
- Apollo-Soyuz Test Project: Russians, Americans Meet in Space
April 23
- Harrison Schmitt: Geologist on the Moon
- Ron Evans: Apollo 17 Command Module Pilot
April 16
- Charles Duke: From Capcom to Moonwalker
- Biography of Ken Mattingly, Apollo 16 astronaut
April 8
- James Irwin: Eighth Man on the Moon
April 4
- Pete Conrad: Apollo 12 Commander
- Richard Gordon: Apollo 12 Command Module Pilot