Mars exploration database

All Missions

Every mission ever sent to the Red Planet: orbiters, landers, rovers and the helicopter that flew. Filter, explore the chronology and open each file.

64MissionsLaunched
8ActiveWorking now
50%Success rateReached their goal
7Rovers
13Landers
30Orbiters
1Helicopters

Chronology of Mars exploration

Drag, scroll or use the arrows. The bars show how many missions launched each year: they cluster around the launch windows that open every 26 months.

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Completed · full success
NASA

Opportunity

Launched on a Delta II Heavy in 2003, Opportunity (MER-B) landed on Meridiani Planum, Mars, in January 2004. Designed for 90 days, it operated for nearly 15 years, traversing 45.16 km (a record). It confirmed past liquid acidic water by discovering hematite and jarosite. A global dust storm in 2018 depleted its batteries, ending the mission in 2019.

Rover
Completed · full success
NASA

Mars Exploration Rover A (Spirit)

Spirit (MER-A) was one of two twin rovers sent by NASA in 2003 to explore the Martian surface. It landed in Gusev crater in January 2004, vastly exceeding its nominal lifespan of 90 sols and confirming a watery past in the region. After becoming immobilized in a sand trap in 2009, the last communication was received in March 2010 and the mission was officially concluded in 2011.

Rover
Completed · full success
NASA

Sojourner

The Mars Pathfinder mission (1996) was a milestone that validated airbag landing systems and deployed the first mobile vehicle on Mars, the Sojourner. Designed to last 7 sols, the 10.6 kg rover operated for 83 sols, analyzing rock chemical composition with its APXS spectrometer and capturing 550 images. The mission confirmed a watery past in Ares Vallis and demonstrated the success of NASA's low-cost philosophy.

Rover