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Cratered highlands and smooth dark lowland plains:

Mars Looks Something Like Earth's Moon


Despite its Earth-like geologic structures, most of Mars looks like the Moon. Elevated cratered plains dot the southern hemisphere, like the highlands of the Moon. The low-lying northern hemisphere has smooth plains that look similar to the dark volcanic maria of the Moon.

About 80 percent of the Martian surface reveals a history like that which ended three billion years ago on the Moon. Only in a few areas did Mars begin to undergo more of the Earth-like geologic processes which changed the lunar look of the planet's surface.


GALLARY OF ROCKS ON MARS


Learn more:
Human Exploration of Mars:
There have been three stages of exploration so far
Sand dunes: Dust Storms: Air: Carbon Dioxide: Outflow Channels: Valley Networks: Rift Valley: Ice: Ice caps: Frost: Water: Artesian Water: Mars Weather: Mars Photo Galleries: Planet features: Canals: Rocks: Mountains: Dating and aging: Seasons:
SPACE TODAY ONLINE:
Exploring Mars
Mars Probes
Probes of the Past
Probes of the Future
Mars Water
Mars Canals
Mars Air
Mars Rocks
Mars Seasons
Mars Mountains
Mars Rift Valley
Mars Moons
Mars Life Search
Mars Dust Storms
Mars Stats
Mars Nearby
Mars history
Mars Resources
Mars Orbiter 2005
Mars Scout 2007
NASA MARS HISTORY:
Rover Spirit 2003
Rover Opportunity 2003
Express 2003
Odyssey 2001
Polar Lander 1999
Climate Orbiter 1998
Deep Space 2 1999
Global Surveyor 1996
Pathfinder Lander 1996
Rover Sojourner 1996
Pathfinder Mission 1996
Viking-1 Lander 1975
Viking-2 Orbiter 1975
Viking-1 Lander 1975
Viking-1 Orbiter 1975
Mariner 9 Orbiter 1971
Mars 3 Lander 1971
Mariner 4 Flyby 1964
Viking Mission 1975
Mars Meteorites - JPL
EXPLORATIONS PLANNED:
2003 & Beyond - Goddard
2005 & Beyond - JPL
Mars Exploration - JPL
Plans to Explore Planets


SOLAR SYSTEM:
Solar System - JPL
Welcome to the Planets - JPL
Planetary Photojournal - JPL
Mars - Athena - NASA Ames
Solar System Tour - BBC
Mars - New York Times
Windows...Universe - UMich
Mars - Apollo Society
Planetary Society
Mars Society
The Nine Planets
Planet Mars Company
Solar System - STO
Solar System Tour
Artist conception of Mars with water four billion years ago
NASA CONCEPTION OF MARS WITH
WATER FOUR BILLIONS YEAR AGO
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