Lunar rover

A lunar rover is a special vehicle made to travel across the Moon.

These machines are very important for space exploration. They help scientists study the lunar surface and learn about the Moon's history. Some rovers are driven by people, like the ones used by American astronauts. Other rovers are robots that work on their own.

These robots can go to places that might be hard for humans to reach. Five different countries have successfully operated rovers on the Moon. These nations are the Soviet Union, the United States, China, India, and Japan.

Rovers use different ways to get power and move.

Many robotic rovers use photovoltaic solar power, which is energy from sunlight. Because the Moon has very long nights, rovers often need ways to store energy or go into hibernation. Some rovers, like the Apollo Lunar Roving Vehicle, use batteries instead. The Lunokhod rovers from the Soviet Union used eight wheels to move. The American Apollo rovers used a four-wheel design. To stay warm during the freezing lunar night, some rovers use special heaters. For example, the Lunokhod rovers used heat from radioactive polonium-210.

History shows us how these machines have changed over time.

The Soviet Union sent Lunokhod 1 to the Moon in November 1970. It was the very first rover to land on another celestial body. It stayed working on the Moon until October 1971. Later, the Luna 21 spacecraft landed Lunokhod 2 in January 1973. The United States used rovers during the final three Apollo missions. These were Apollo 15, Apollo 16, and Apollo 17. These American rovers helped astronauts carry equipment and lunar samples.

Many different rovers have completed unique missions with specific goals.

China's Yutu rover, named after the Jade Rabbit, landed in December 2013. A newer version, Yutu-2, landed on the far side of the Moon in 2019. Yutu-2 is the longest-living rover on the Moon so far. India's Pragyan rover landed near the Moon's south pole in August 2023. Japan also sent small rovers called LEVs with the SLIM lander.

One of these, LEV-2, is a tiny rover called Sora-Q. It was designed to change its shape to move around the landing site.

Learning about rovers helps us understand how we might live in space.

Scientists are already planning even bigger and better machines. NASA is working on a testbed called ATHLETE. This is a six-legged robot that can both roll and walk. Walking helps it move over very difficult ground. Other plans include the Lunar Polar Exploration Mission. This would be a joint project between India and Japan in 2028. These future machines will help us explore the Moon even more deeply.