NASA's MESSENGER Discovery mission used one Earth, two Venus, and three Mercury gravity assists to become the first spacecraft to orbit Mercury, then mapped and characterized the planet for more than four years.
Identity
Aliases
MErcury Surface, Space ENvironment, GEochemistry, and RangingMercury Surface, Space Environment, Geochemistry, and Ranging
Name
MESSENGER
Slug
messenger
Status
completed
Details
Description
NASA's MESSENGER Discovery mission used one Earth, two Venus, and three Mercury gravity assists to become the first spacecraft to orbit Mercury, then mapped and characterized the planet for more than four years.
End Date
2015-04-30
Launch Site Id
qh7422164wy3ft5y6fa3dk60ah8afkef
Outcome
Success. MESSENGER became the first spacecraft to orbit Mercury, globally mapped the planet, characterized its composition and magnetic field, documented its geological history, and confirmed that its polar deposits are dominated by water ice. After exhausting usable propellant, it completed the mission with a predicted impact on Mercury on April 30, 2015.