MESSENGER

Mission overview

MESSENGER was the first spacecraft to orbit Mercury, mapping the planet in detail.

Mapped Mercury globally and found evidence of water ice in permanently shadowed polar craters.

Mission	Type	Agency	Launch	Status
InSightMars	Lander	NASA	2018-05-05	Completed
DawnVesta and Ceres	Orbiter	NASA	2007-09-27	Completed
LucyJupiter Trojan asteroids	Multiple flyby	NASA	2021-10-16	Active
PsycheAsteroid 16 Psyche	Orbiter	NASA	2023-10-13	En route
Kepler Space TelescopeEarth-trailing solar orbit	Space telescope	NASA	2009-03-07	Completed

Facts on this topic will be cited from these primary and reference sources.

NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.

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