Rovers Pave the Way for Hospital Robots

Before Curiosity came the Mars Exploration Rovers, Spirit and Opportunity. Before Spirit and Opportunity, came Pathfinder and Sojourner. Before Pathfinder and Sojourner, the Mars Global Surveyor, and before the Mars Global Surveyor, the Viking landers. Over the years, a host of Mars missions and programs have built on one another, spurring technology advancements that have led to the impressive collection of Mars information and images that we have today.