Mariner
9
10

Artist's concept of Mariner 10 Artist's concept of Mariner 10

Artist's concept of Mariner 10.
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Mission Summary

The first mission to employ gravity assist, or using the gravity of a planet to alter a spacecraft's speed and trajectory to fly by its target planet, the Mariner 10 mission flew by both Venus and Mercury, snapping photos and collecting data.

Also the first spacecraft to visit Mercury, a feat that wouldn't happen again for more than 30 years, Mariner 10 data revealed a surprising magnetic field and a metallic core comprising about 80 percent of Mercury's mass.

Scientific Instrument(s)

- Imaging system
- Electrostatic analyzer
- Electron spectrometer
- Triaxial fluxgate magnetometer
- Extreme ultraviolet spectrometer
- Infrared radiometer


Type: Flyby
 
Status: Past
 
Launch Date: November 03, 1973
12:45 a.m. EST (05:45 UTC)
 
Launch Location: Cape Canaveral Air Force Station, Florida
 
Mission End Date: March 24, 1975
 
Target: Mercury, Venus
 
Destination: Mercury, Venus
 
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