Rovers are robots that travel across the surface of planets, and take samples or preform experments. Here is a list of all of NASA's mars rovers wand what they did.
- Sojourner- The sojourner rover was launched in 1997, and was the first weeled robot on mars. Link
- Spirt- The Spirt rover was launched in 2003. The rovers main goal was to search for clues of past water. Link
- Opportunity- Just like the spirt the Opportunity rover was made to search for past signs of water. It was launched in 2003 about a month after Spirt. Link
- Curiosity- The Curiosity rover was launched in 2012, and its goal was to find if Mars once had all of the requirements for life. Link
- Perseverance- The Perseverance rover was launched in 2020, and its mission was to find past life on mars. Link