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Herschel is a space observatory for the ESA. It is a infrared telescope and the largest ever launched to date. NASA is however a partner in this mission. Planck is also an ESA space observatory but maps cosmic microwave background.
Height 57.70 Meters
Max Stages 2
Mass To GTO 10500 kg
Liftoff Thrust 11400 kN
Diameter 5.40 Meters
Mass To LEO 0 kg
Liftoff Mass 780 Tonnes
Launch Success 71
Consecutive Success 8
Maiden Flight 2002-12-11
Launch Failures 2