The MESSENGER spacecraft is beginning to fill in the rest of the picture. MESSENGER — short for MErcury Surface, Space ENvironment, GEochemistry, and Ranging — zipped past Mercury January 14.

Nasa Nasa’s Messenger spacecraft which has orbited Mercury since 2011 will crash into the planet on Thursday bringing the mission to a dramatic close. The US space agency will broadcast the ...

to help confirm that Mercury's surface had been formed by volcanic activity early in the planet's history. The image was taken by the MESSENGER spacecraft as it flew past Mercury in January 2008.

Using data from NASA’s MESSENGER spacecraft, scientists have identified a potential 10-mile-thick diamond mantle beneath Mercury’s crust. This finding suggests the planet may harbour more ...

solid inner core MESSENGER (MErcury Surface, Space ENvironment, Geochemistry and Ranging) was a robotic spacecraft, which was launched in August 2004 with an aim to study the chemical composition ...