[Paul K]

Google Mars

This map of Mars, published by Percival Lowell in 1895, was the result of many years spent carefully studying the Red Planet through his telescope. Now you can do the same through your web browser. In collaboration with NASA researchers at Arizona State University, we've created some of the most detailed scientific maps of Mars ever made.
If you have half as much fun exploring them as we did making them, you're in for a great time.

Using this service, you can browse the martian landscape the same way as using Google Maps. Google has included three different types of data in Google Mars.

Elevation - A shaded relief map, generated with data from the Mars Orbiter Laser Altimeter (MOLA) on NASA's Mars Global Surveyor spacecraft. This map is color-coded by altitude, so you can use the color key at the lower left to estimate elevations.
Visible - A mosaic of images taken by the Mars Orbiter Camera (MOC) on NASA's Mars Global Surveyor spacecraft. MOC is like the digital camera you have at home. Basically, this is what your eyes would see if you were in orbit around Mars.
Infrared - A mosaic of infrared images taken by the Thermal Emission Imaging System (THEMIS) on NASA's Mars Odyssey spacecraft. Warmer areas appear brighter, and colder areas are darker. Clouds and dust in the atmosphere are transparent in the infrared, making this the sharpest global map of Mars that's ever been made.
When you first load the service, you will see a stunning map of Mars that by default shows you elevation. You can switch between the three views by clicking the buttons in the top right corner.