Mars InSight: Inside Nasa's mission control
After a journey of more than 6 months, Nasa’s InSight Lander will make an attempt to land on the surface of the Red Planet.
In the final few minutes of its journey, the spacecraft will have to decelerate - from six times the speed of a bullet - enough to make a safe touchdown on the surface.
Our science correspondent Victoria Gill has been to the centre of operations and found out about an unusual tradition.
26 Nov 2018