types of missions
When we were just starting out in solar system exploration, the very first missions simply flew by Mars, taking as many pictures as possible on their way past. Flyby missions include: Mariner 3-4 | Mariner 6-7. Orbiters:
Today, we're not only landing in one place, but have shown that we can be mobile on the surface of Mars. Landed missions include: Viking 1-2 | Pathfinder | Polar Lander/Deep Space 2 | Mars Exploration Rovers | Phoenix | Mars Science Laboratory.