A NASA Discovery mission to conduct the first orbital study of the innermost planet
NASA logo carnegie institution logo JHU APL logo
MESSENGER spacraft
Why Mercury?
The Mission
Gallery
Education
News Center
Science Operations
Who We Are
FAQs
Related Links
Contacts
Home


Mercury flyby 3 Mercury flyby 2 Mercury flyby 1 Where is MESSENGER? Where is Mercury now? Subscribe to MESSENGER eNews


banner

Mercury: Inside and Out

Looking in on Mercury:

Mass & Density

Core

A rendering of the inside of Mercury

On the Outside:

Surface

Atmosphere

Temperature

The Elusive Planet banner
-Fast Facts-
-History and Culture-
-Inside and Out-
-Around the Sun-

Check out the new scale model of the MESSENGER spacecraft!