## The planet of robots

Humans have always searched for new places to explore and new ways to get where they wanted. Where no human could go, they would send robots to do the job for them. Mars, one of Earth's closest neighbors, is currently home to quite a few robotic devices. Those able to move around roam the planet's red sands while relaying their experience back to their mother planet.

Color coding for missions
Failed | Successful | In progress | Planned

Country/Agency | Rover | Date of landing | Operational time | Distance traveled | Notes
--- | --- | --- | --- | --- | ---
| PROP-M rover | November 27, 1971 | 0 days | 0 km | Lost when it crash-landed on Mars
| PROP-M rover | December 2, 1971 | 0 days | 0 km | Lost when Mars 3 lander stopped communicating about 20 seconds after landing
| Sojourner | July 4, 1997 | 85 days | 100 m (330 ft) | First successful rover on Mars
| Spirit | January 4, 2004 | 2269 days | 7.73 km (4.80 mi) |
| Opportunity | January 25, 2004 | 5498 days | 45.16 km (28.06 mi) | The longest distance traveled by any rover and the most days operated
| Curiosity | January 25, 2012 | 3214 days | 24.85 km (15.44 mi) as of 4 March 2021 | Currently active
| Perseverance | February 18, 2021 | 96 days | 322 m (1,056 ft) as of 14 May 2021 | Currently active
| Zhurong | May 14, 2021 | 11 days |  | Currently active
| Rosalind Franklin | 2029 (planned) | 420 days (planned) |  | Planned to launch in 2028

Data source: Wikipedia