Swati Mohan of NASA’s Mars 2020 team said: “Entry, descent and landing is often referred to as the seven minutes of terror.
“Because it takes about seven minutes to get from the top of the atmosphere of Mars to the ground safely.”
Many things will need to go right for the rover to survive the descent.
Perseverance will need to release its parachute at just the right time to slow down from about 1,000mph down to about 2oomph.
The rover will then need to fire the engines on its Skycrane platform – a jetpack-like device designed to safely lower the rover to the ground.