
NASA
The actual touch down of Perseverance is meant to be a soft landing that shouldn’t be detectable over a long distance, but the more energetic parts of the process Fernando refers to include the sonic boom from the spacecraft as it decelerates during descent, and the impact of two large weights called Cruise Mass Balance Devices, aka CMBDs.
The Mars Insight lander is located less than 2,000 miles (about 3,000 kilometers) away from Jezero Crater, where Perseverance is set to land. Unlike the more charismatic rovers that are designed to roll around and explore the Martian landscape, one of Insight’s primary jobs is simply to sit in one spot and listen for marsquakes and other seismic activity.