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Messenger to Mercury

NASA’s Messenger spacecraft entered orbit around Mercury in 2011 for a one-year mission to this least-explored of the solar system’s inner planets. It flew by Mercury three times before settling into orbit, with each encounter reducing its speed. Messenger will map the planet’s entire surface, measure the chemical and mineral composition of its rocks and soil, measuring its gravitational and magnetic fields, and conduct other observations.


Mercury March 7, 2006

Featured Images

Composite image showing sites of possible ice deposits on Mercury

Icy Darkness November 24, 2019

Colorful Caloris April 15, 2016

View of Mercury from Messenger spacecraft

Dark Planet October 10, 2015

The Messenger spacecraft's final image of the surface of Mercury

The End April 30, 2015

Messenger view of the surface of Mercury

Getting Closer October 30, 2014

MESSENGER view of crater Degas on Mercury

Painting a Planet June 17, 2013

Messenger view of Mercury's southern hemisphere

Hard-to-Study Planet September 2, 2011

Messenger view of the surface of Mercury, June 2011

Hello, Sunshine July 2, 2011

MESSENGER's first color image of Mercury, March 29, 2011

First Glimpse March 31, 2011

Artist's concept of Messenger orbiting Mercury

Safe Arrival March 18, 2011

Planetary Tail April 6, 2010

Radio Programs

Morning Mercury A bowling ball in the dawn sky August 8, 2019

Messier 37 Taking the age of a star cluster December 16, 2018