Reply to post: Re: I'm curious

Purple glistening plasma, you say? Orion plummets back to Earth

David Given

Re: I'm curious

Getting from a Mars->Earth transfer orbit into Earth orbit would use loads of fuel, which you'll need to haul all the way to Mars and back; plus it's another complex manoeuvre in an already complex mission profile. (It's possible to reduce fuel requirements by aerobraking the entire vehicle in Earth's atmosphere --- that way you just need a small amount of fuel to circularise your orbit once you've been captured --- but that's even more hairy.)

Given that you're not going to be reusing the Mars transfer vehicle anyway (it'll be several years old and rather beaten up), you might as well just dump it in the atmosphere and land the crew in a capsule. That way no braking is required --- your transfer orbit just dives straight into the atmosphere.

POST COMMENT House rules

Not a member of The Register? Create a new account here.

  • Enter your comment

  • Add an icon

Anonymous cowards cannot choose their icon

Biting the hand that feeds IT © 1998–2021