The first weather satellite (ESSA-1) was launched into orbit from Cape Canaveral, Florida.
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NASA's Explorer 49 was launched into Earth's orbit to research long-range radio waves within the Milky Way.
NASA launched the Echo 2 experimental communications satellite.
NASA's Endeavour Space Shuttle landed for its 25th and final time.
NASA tested the Saturn I launch vehicle with a boilerplate Apollo spacecraft for the first time.
Cassini orbiter released the Huygens probe, which successfully landed on Saturn's moon Titan.
