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Artemis Moon Program

fredymac

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Artemis is the overall NASA program aimed at re-establishing manned lunar exploration which includes the "lunar gateway".

A human rated, reusable lander is being developed using the model of the commercial crew program. The schedule goal is to conduct the first, un-crewed landing in 2024 followed by a manned landing in 2025. Aerojet Rocketdyne, Blue Origin, Boeing, Dynetics, Lockheed Martin, Masten Space Systems, Northrop Grumman, OrbitBeyond, Sierra Nevada, SpaceX and Maxar are all bidding for a 2 contractor downselect about 1 year from now.

Contractors are not required to use the SLS to get the lander on the moon. However, NASA wants the ability to eventually dock with the lunar gateway.

Story here:
https://spaceflightnow.com/2019/10/07/nasa-opens-competition-to-build-human-rated-lunar-landers/

NASA program description
https://www.nasa.gov/nextstep/humanlander2
 

Michel Van

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For my part is Artemis waste of money
it focus on construction of a "lunar gateway" that need billions dollars to build and launch and assembly what take too much time
Pull money away from R&D budget needed to build the Landers and needed equipment like new Spacesuits.

My proposal drop the "Lunar Gateway" and spend the money into Reusable lander (base like on Blue Origin "Blue Moon")
Drop the SLS and goes with Falcon Heavy Falcon 9 and New Glenn or Vulcan
and Starliner and crew Dragon to get crews to landers

The Reusable lander operate from low earth orbit and use aerobraking on return to LEO
are refuel by exchange of Propellant tanks in LEO
The Reusable lander use a Direct landing trajectory to arrive on Moon and back
if there a emergency the crew module could land on Earth with help of aerobraking heat shield and parachutes.
 

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RanulfC

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For my part is Artemis waste of money
it focus on construction of a "lunar gateway" that need billions dollars to build and launch and assembly what take too much time
Pull money away from R&D budget needed to build the Landers and needed equipment like new Spacesuits.
It's a 'gateway' more than a "lunar gateway" is the plan and keep in mind that current plan is for NASA to NOT 'own' the landers and equipment. They are still paying to develop them :)

My proposal drop the "Lunar Gateway" and spend the money into Reusable lander (base like on Blue Origin "Blue Moon")
It's in the competition which has seperate funds from the gateway

Drop the SLS and goes with Falcon Heavy Falcon 9 and New Glenn or Vulcan
Could happne now that Congress is changing but if certain people aren't out in 2020 NASA will have to run both.

and Starliner and crew Dragon to get crews to landers
Again that depends mostly on politics. Orion may only fly on the SLS and may only be used a couple of times every couple of years. We can hope.

The Reusable lander operate from low earth orbit and use aerobraking on return to LEO
You realize that's a lot of extra gear to carry all the way to the surface of the Moon and back right? The whole idea of basing a reuable lander at the Gateway is to allow the lander to carry more gear/crew to the surface and back. Basing it in LEO means it then has that much more propellant needed to get TO the Moon let alone back again.

are refuel by exchange of Propellant tanks in LEO
The idea is to keep moving 'excess' propellant outward to fuel (pardon the pun) future work. Having a LEO depot and one in Lunar orbit means propellant can 'rideshare' from LEO to the Moon for the lander and other uses.

The Reusable lander use a Direct landing trajectory to arrive on Moon and back
HIgher propellant useage/needs due to higher initial mass and lower landed and returned mass. Breaking it up is more efficent.

if there a emergency the crew module could land on Earth with help of aerobraking heat shield and parachutes.
An Orion capsule mounted on the Blue Origins lander which also mounts an aerobrake system and extra propellant tanks. What have you saved with all this?
Seriously OTHER than being a NASA idea and a government run program, (and don't get me wrong there are issues with both :) ) what is wrong with the Gateway?

RAndy
 
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