Vanguard 3 (international designation 1959 Eta 1) is a scientific satellite that was launched into Earth orbit by a Vanguard rocket on September 18, 1959, the third successful Vanguard launch out of eleven attempts.
Read more about Vanguard 3: Mission Objectives
Famous quotes containing the word vanguard:
“Ladies and gentlemen, I have a grave announcement to make. Incredible as it may seem, strange beings who landed in New Jersey tonight are the vanguard of an invading army from Mars.”
—Orson Welles (1915–1984)