Launched NASA's MESSENGER spacecraft from Cape Canaveral on a multi-flyby trajectory past Earth, Venus (twice), and Mercury (three times) before entering Mercury orbit in March 2011 - only the second mission, after Mariner 10, to reach the planet.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 1.1 T
- Flight
- 2nd
- of 3 Delta II 7925H-9.5 flights
- Date and time
- 3 August 2004, 06:15 UTC
- Rocket
- Delta II 7925H-9.5
- Builder
- ULA
- Launch site
- Space Launch Complex 17B, Cape Canaveral SFS, FL, USA
- Payload
- Planetary Science
- International designator
- 2004-030
- Launches in 2004
- 30th of 54
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