The first weather satellite (ESSA-1) was launched into orbit from Cape Canaveral, Florida.
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Apollo 10 was launched from the John F. Kennedy Space Center on a mission to the Moon.
NASA launched the Echo 2 experimental communications satellite.
Cassini orbiter released the Huygens probe, which successfully landed on Saturn's moon Titan.
The US Navy's Vanguard SLV-2 launch vehicle failed to reach Earth's orbit.
Viking I lands on Mars.
