There are many good websites that provide information about Mars. You might start by exploring NASA’s Mars Exploration Program homepage (http://mars.jpl.nasa.gov/), which has sections about Mars science, technology, and missions as well as general facts about Mars and information about the most recent data coming back from the Red Planet. You can also find out more at the NASA.gov Mars mission page: http://www.nasa.gov/mission_pages/mars/main/index.html and NASA’s “World Book at NASA” Mars entry: http://www.nasa.gov/worldbook/mars_worldbook.html