After nearly seven months in transit and more than a decade of preparation, NASA’s Perseverance rover has successfully landed on Mars, marking a milestone in the Mars 2020 mission. The landing occurred at 3:55 p.m. EST on February 18, 2021, inside the Jezero Crater—a site selected for its rich geological history and potential to preserve signs of ancient microbial life.
The descent was preceded by the tense “seven minutes of terror,” a term used by mission engineers to describe the critical entry, descent, and landing sequence. Encased in its protective entry capsule, Perseverance struck the Martian atmosphere at approximately 19,000 km/h (12,000 mph). Atmospheric friction, guided thruster adjustments, and the deployment of the largest supersonic parachute NASA has ever sent to another planet slowed the craft to subsonic speeds. The heat shield separated, radar locked onto the surface, and the rover’s sky crane system lowered the vehicle safely to the ground.
“Touchdown confirmed! Perseverance safely on the surface of Mars, ready to begin seeking signs of past life,” announced flight controller Swati Mohan from mission control at NASA’s Jet Propulsion Laboratory (JPL). The landing sequence executed flawlessly, with each stage performing exactly as designed.
Perseverance carries an unprecedented suite of instruments. Among them is a coring drill capable of extracting and sealing samples of Martian rock and soil. These samples will be stored in ultra-clean tubes, designed to avoid any contamination from Earth, for retrieval by a future joint NASA–ESA mission. The rover will also conduct experiments to produce oxygen from the Martian atmosphere, providing data crucial for planning human exploration.
The Jezero Crater, once home to a lake and river delta about 3.5 billion years ago, contains carbonate deposits and sedimentary structures that could preserve biosignatures. Its varied terrain—rock fields, sand dunes, and smaller impact craters—made it a challenging landing site, but its scientific potential outweighed the risks.
Perseverance’s design builds on the heritage of the Curiosity rover but incorporates enhanced autonomy, allowing it to navigate and make decisions with minimal input from Earth. This capability is essential given the communication delay between the planets. Mounted beneath the rover is Ingenuity, a small experimental helicopter. Ingenuity will attempt the first powered flight on Mars, testing rotorcraft technology in the thin Martian atmosphere. The name was submitted by high school student Vaneeza Rupani, who wrote, “Ingenuity is what allows people to accomplish amazing things.” Perseverance itself was named by Alexander Mather, another student winner of NASA’s “Name the Rover” contest.
In a gesture of solidarity during the COVID-19 pandemic, Perseverance carries a plaque honoring medical workers worldwide. This tribute reflects the mission’s broader message of resilience and cooperation in the face of global challenges.
Within seconds of landing, Perseverance transmitted its first images from dust-proofed cameras mounted on its front and rear. Initial low-resolution pictures revealed the rover’s surroundings in Jezero Crater, with higher resolution images expected in the days following.
The landing was the culmination of coordinated efforts across multiple teams. The “cruise” team, responsible for guiding the spacecraft during its interplanetary journey, handed control to the “landing” team for the final descent. JPL chief engineer Rob Manning noted, “The rover’s completely in charge. It’s doing all the things we’ve taught it to do.” Following touchdown, the surface mission team began system checks, with communications relayed via the Mars Reconnaissance Orbiter.
JPL director Mike Watkins praised the collective effort: “They have worked for years and years on this mission, and I want to thank not only the team, but all of JPL. A lot of folks had to pitch in.” The successful landing opens the door to years of exploration, with Perseverance poised to investigate Mars’s ancient environments, search for signs of past life, and pave the way for future human missions.