It’s easy to take for granted accomplishments by space agencies when we see regular footage of rockets, satellites, and capsules docking at the ISS. But the image released by NASA of Perseverance, its latest rover to land on Mars, brings the phrase “seven minutes of terror” into perspective. The seven minutes refers to the amount of time that NASA’s mission control at its Jet Propulsion Laboratory in Southern California remained out of radio contact with the spacecraft as it was landing. The rover dangled underneath its descent module while being lowered onto the planet surface.
https://mars.nasa.gov/news/8866/nasas-perseverance-rover-sends-sneak-peek-of-mars-landing/