Major articles for May 1964:
4) RELAY – Communications satellite
6) OSO – Orbiting Solar Observatory
7) OAO – Orbiting Astronomical Observatory
8) MARINER – Interplanetary spacecraft
10) TIROS – Weather satellite
13) ECHO – Communications satellite
14) EXPLORER – Geophysical satellite
15) SYNCOM – Synchronous orbit communications satellite
16) SATELLITE NAVIGATION
19) THE PURSUIT OF SPACE KNOWLEDGE, by Don Gregory
22) ALBUM – Satellites
31) SATELLITES IN ORBIT
35) TALENTED WOMEN, by Donald Brannon
38) MORE TASKS FOR “NEW” X-15
41) IN THE NEWS
43) ROCKET CLUBS
44) BOOK REVIEWS
48) LAUNCH PAD
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