Constants and Equations: Mercury
   Wide range of information about this planet.
   http://www.tcaep.co.uk/astro/planets/mercury/

MESSENGER: NASA probe
   Due for launch in 2004, it will reveal more about the innermost planet.
   http://messenger.jhuapl.edu/

Mercury
   Introduction to the closest planet to the Sun, with details of the Messenger mission.
   http://www.harmsy.freeuk.com/mercury.html

Mercury and its History
   Offers background on Mercure and news from the Messenger space mission.
   http://www.cosmicelk.co.uk/Mercury.htm

NSSDC: Mercury
   From NASA's photo gallery.
   http://nssdc.gsfc.nasa.gov/photo_gallery/PhotoGallery-Mercury.html

Planet Mercury - Overview
   General overview of the planet Mercury with facts and pictures.
   http://www.solarspace.co.uk/Mercury/mercury.php

The Planet Mercury
   Includes quizzes and pictures.
   http://www.the-solar-system.net/planet-mercury/mercury.html

Transit of Mercury: Live Images
   This site will contain live images of the transit of Mercury across the face of the Sun as recorded at Worth Hill Observatory in May 2003.
   http://home.freeuk.net/dgstrange/transit.mercury.2003/

USGS Astrogeology: Mercury
   US Geological Survey Mercury page, with links to Geological information about the planet.
   http://astrogeology.usgs.gov/SolarSystem/Mercury/