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Mars rover

Adapted from Wikipedia Β· Adventurer experience

A self-portrait of NASA's Curiosity rover on Mars, showing the vehicle at the 'Big Sky' drilling site. The image captures the rover's instruments and the Martian surface, offering a glimpse into space exploration.

A Mars rover is a remote-controlled motor vehicle made to travel on the surface of Mars. Rovers are better than stationary landers because they can look at more places, move to see interesting things, and help scientists learn how to control robots from far away. Unlike spacecraft that orbit Mars, such as the Mars Reconnaissance Orbiter, rovers can get very close to the ground on Mars.

NASA's Curiosity rover, selfie, 2015

As of March 20, 2026, several rovers have explored Mars. The first five were managed by the American NASA Jet Propulsion Laboratory: Sojourner landed in 1997, Spirit and Opportunity in 2004, Curiosity in 2012, and Perseverance in 2021. The sixth rover, Zhurong, was managed by the China National Space Administration and landed in 2021. These rovers have helped scientists look for signs of old water and possible life on Mars.

Rovers like Opportunity, Spirit, and Curiosity can work on their own, while others need help from a base station. Today, Curiosity is still active, exploring Mars and sending back important information about our neighboring planet.

Missions

See also: List of missions to Mars

NASA has sent rovers to Mars to learn more about the planet. The Curiosity rover landed in 2012 and is still working. The Perseverance rover landed in 2021 and is also still active. Earlier rovers like Sojourner, Spirit, and Opportunity finished their work in the past.

Other countries plan to send rovers to Mars in the future, including Europe's Rosalind Franklin rover and India's Mars rover for 2030.

Timeline of rover surface operations

The timeline of rover surface operations shows important events and milestones in the missions of rovers on Mars. Each rover, such as Spirit, Opportunity, Curiosity, and Perseverance, has helped us learn more about the Red Planet by exploring different areas and collecting data.

These rovers have traveled long distances, looked at interesting rocks and soil, and helped scientists understand more about Mars. Their missions have shown how we can control robots from very far away and have inspired future explorations of other worlds.

Examples of instruments

Mars rovers carry special tools to study the planet. One tool is the Alpha particle X-ray spectrometer. It helps identify rocks. Another tool is the Hazcam. It takes pictures so the rover can see around it.

The Mastcam-Z captures colorful images. MOXIE tests making oxygen from Mars's air. These tools help scientists learn about Mars and its materials.

NASA Mars rover goals

NASA set goals for its Mars rover program in the 2010s. These goals were split into two types: mission objectives and science objectives.

The main science goal for the Spirit and Opportunity rovers was to study water on Mars. NASA's long-term Mars Exploration Program had four key science goals: to find out if life ever existed on Mars, to study the planet's climate, to understand its geology, and to prepare for future human exploration of Mars.

Main article: Mars Exploration Program
Further information: Human exploration of Mars

Images

A detailed panorama of the Martian surface taken by NASA's Spirit rover, showing the terrain of the Gusev Crater and distant hills named in honor of space explorers.
Engineers stand with models of Mars rovers developed by NASA, showing the growth in size from the first rover, Sojourner, to the larger Curiosity rover.
The Sojourner Rover exploring the Martian surface during NASA's Mars Pathfinder mission.
An artist's rendering of the Soviet Mars rover PrOP-M, designed for exploring the surface of Mars.
Comparison of Mars rover wheels from NASA's missions, including Sojourner, Spirit/Opportunity, and Curiosity.
Models of Mars rovers used by NASA to explore the surface of Mars.
A selfie of the Zhurong rover with the Tianwen-1 lander on the Martian surface, captured during China's mission to explore Mars.
A fun animation showing NASA's Perseverance rover on Mars with the Ingenuity helicopter nearby!
The Rosalind Franklin rover, a modern space exploration vehicle designed for Mars research.
A photograph of the planet Mars showing its atmosphere and clouds taken by the Hubble telescope.

Related articles

Sojourner (rover)
Spirit (rover)
Opportunity (rover)
Curiosity (rover)
Perseverance (rover)
Mars

This article is a child-friendly adaptation of the Wikipedia article on Mars rover, available under CC BY-SA 4.0.

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