Perseverance (rover)

Perseverance is a NASA rover that has been exploring Mars since February 18, 2021, as part of the Mars 2020 mission. It was built and managed by the Jet Propulsion Laboratory and launched on July 30, 2020, from Cape Canaveral on an Atlas V rocket. The rover landed in Jezero Crater, a place chosen because of its ancient river delta that might hold clues about past microbial life.

The main job of Perseverance is to look for signs that life might have once existed on Mars. It also studies the planet's rocks and climate, and collects samples that scientists hope to bring back to Earth someday. The rover carries many tools, including seven science instruments, 19 cameras, and even two microphones. It also helped fly the tiny helicopter called Ingenuity, which made the first controlled flights on another world.

Perseverance is powered by a special radioisotope thermoelectric generator and was designed to work for more than ten years. It has taken amazing pictures, drilled holes to collect rock samples, and found rocks that might have been good places for tiny life to live long ago. In July 2024, it found a special rock called the Cheyava Falls that might hold clues about past life, known as a possible biosignature. As of May 1, 2026, Perseverance has been working on Mars for over five years, giving us wonderful information about the red planet.

Mission

After the success of the Curiosity rover, NASA planned a new mission to Mars called Mars 2020. This mission aimed to send a rover named Perseverance to explore the planet. The rover landed in Jezero Crater in 2021 and has been searching for signs of ancient life, studying the planet's geology, and collecting samples that might be brought back to Earth someday.

Perseverance has four main goals: to look for places where tiny life might have lived long ago, to search for clues of that life in rocks, to collect and store samples for future missions, and to test ways to make oxygen from the Martian air. So far, the rover has found evidence of ancient water environments and different types of rocks that could help scientists understand Mars better.

Design

The Perseverance rover was built to be even better than its predecessor, the Curiosity rover. It has stronger wheels made of aluminum that are bigger and more durable. The rover also has a longer and stronger robotic arm that can collect rocks and soil, storing them in special tubes for scientists to study later.

Perseverance is heavier than Curiosity because of its extra tools and stronger body. It uses a special power source made from plutonium-238 that creates electricity from heat, allowing it to work even when it’s dark or during dusty weather on Mars. The rover’s computer is tough and reliable, helping it send information back to Earth using antennas that talk to spacecraft orbiting Mars.

Instruments

NASA chose seven important tools for the Perseverance rover to help it explore Mars. One tool, called MOXIE, can make small amounts of oxygen from the carbon dioxide in Mars' air. This could help future astronauts live on Mars. Another tool, PIXL, uses X-rays to study the rocks and soil on Mars. There is also a radar tool called RIMFAX that can look underground to find water ice or salty water.

The rover has other tools too, like SuperCam, which can study rocks from far away using lasers and special cameras. Mastcam-Z takes pictures and can zoom in to see details. SHERLOC uses ultraviolet light to look for signs of past life. Perseverance also carries cameras and microphones to record its work on Mars.

The Ingenuity helicopter flew with Perseverance and showed that flying on Mars is possible. It made many flights over three years, helping scientists plan future missions. The rover was named by a student named Alexander Mather, who said that perseverance—never giving up—is an important human quality for exploring new places.

Operational history

Further information: Timeline of Mars 2020

The Perseverance rover launched on July 30, 2020, from Cape Canaveral in Florida, aboard an Atlas V rocket. It traveled for 29 weeks before landing in Jezero Crater on February 18, 2021. This crater was chosen because scientists believe it may have once held conditions that could support tiny forms of life.

After landing, Perseverance began exploring the area. It examined rocks for signs of past life and collected samples that might one day be brought back to Earth for study. The rover uses special tools to pick up rocks and soil, storing them in special containers for future missions. So far, it has collected many samples, though plans to bring them back to Earth are still being worked on.

Cost

NASA spent about US$2.75 billion on the Perseverance rover over 11 years. This includes US$2.2 billion to build the rover, US$243 million to launch it, and US$291 million to operate it for 2.5 years.

When we adjust for inflation, Perseverance is NASA's sixth most expensive robotic mission to planets, but it cost less than its predecessor, Curiosity. It saved money by using spare parts and designs from the Curiosity mission.

Commemorative artifacts

NASA invited people to send their names to Mars on the Perseverance rover. Over ten million names were submitted and etched onto tiny silicon chips, placed on the rover along with a special design showing Earth, Mars, and the Sun.

The rover also carries special items to honor people and ideas. One is a small item for geocaching fans to spot from space images. Another is a symbol of medicine to thank healthcare workers. There is also a picture of all the Mars rovers, including Perseverance, and a parachute with a hidden message that says "dare mighty things," a motto of NASA’s Jet Propulsion Laboratory.

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