Question 6 - space You are part of a design team designing a spaceship to travel to Mars. The anticipated mission duration is 800 days. A particular mission critical (a parabolic communication antenna component) is known to have a limited lifetime in the space environment (damaged by debris when traveling at high speed), but you have limited data in an open space flight environment. Your test evaluations recorded 2 failure in 100 days of flight testing. Repairs are easily conducted, but you need to carry spare components. How many spares do you recommend. Justify