Earlier quoted context omitted.
Use Falcon Heavy by SpaceX or New Glenn by Blue Origin for a fraction of the cost of SLS. Orion may be worth keeping. It is limited to 4 astronauts which is probably too small a crew for a 2.5 year Mars mission. I do think that it could be built much cheaper, however.
I don't think FH is enough for manned mars missions. It has enough delta V to land there but not to come back.
NASA admits it doesn’t have the funding to land humans on Mars
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Re: NASA admits it doesn’t have the funding to land humans on Mars
#42But more than anything I think we and the other executive agencies would take any strong commitment on an exploration and human spaceflight direction from congress that survives across presidential administrations over any specific technical consideration.
I.e. we're waiting for strong elected leadership.
Re: NASA admits it doesn’t have the funding to land humans on Mars
#43I had a conversation a few years ago with Buzz Aldrin. He was talking about his idea for a Mars Cycler which would travel continuously between Earth and Mars. I told him that I thought it was a great idea (especially as it would be investing in 'permanent' space infrastructure instead of a single-shot mission) but that I thought it was unlikely that the government would allocate enough resources to build it. He seeme…
Great Ideas(TM) emerge and people get enthusiastic about them, but fail to realize that the cost makes them difficult to carry out as intended. The Great Idea is then either watered down (Skylab, Space Shuttle) or comes to an abrupt halt due to lack of funding or for political reasons (Space Station Freedom, Constellation).
I'm getting more and more convinced that it will take autocratic nations looking for prestige, or commercial companies offering cheap and exotic tourist flights for humans to get back to the moon. The US doesn't have the political strength or stability to plan such a mission at the moment, and keep it going for the ~10ish years it takes.
Re: NASA admits it doesn’t have the funding to land humans on Mars
#44Re: NASA admits it doesn’t have the funding to land humans on Mars
#45I don't see the purpose of landing people on Mars. Just to say, "we did it". Wouldn't it be a much more rewarding goal to research and execute systems that could send humans one way to planets in our galaxy. Even seeding organisms on other planets in the hope that they evolve into intelligent life.
Re: NASA admits it doesn’t have the funding to land humans on Mars
#46I had a conversation a few years ago with Buzz Aldrin. He was talking about his idea for a Mars Cycler which would travel continuously between Earth and Mars. I told him that I thought it was a great idea (especially as it would be investing in 'permanent' space infrastructure instead of a single-shot mission) but that I thought it was unlikely that the government would allocate enough resources to build it. He seeme…
https://espnfivethirtyeight.files.wordpress.com/2013/01/16fi...
Re: NASA admits it doesn’t have the funding to land humans on Mars
#47I had a conversation a few years ago with Buzz Aldrin. He was talking about his idea for a Mars Cycler which would travel continuously between Earth and Mars. I told him that I thought it was a great idea (especially as it would be investing in 'permanent' space infrastructure instead of a single-shot mission) but that I thought it was unlikely that the government would allocate enough resources to build it. He seeme…
https://engineering.purdue.edu/AAECourses/aae450/2017/spring...
Buzz Aldrin with the team:
https://engineering.purdue.edu/AAECourses/aae450/2017/spring...
Re: NASA admits it doesn’t have the funding to land humans on Mars
#48NASA has enough funding, they are just spending it on SLS and Orion(¹). It appears that if they were to pay the "new space" companies to get them to Mars, the money would be enough. (¹) because Congress wants them to, because ... jobs (as if "new space" companies weren't creating jobs, too... even competitive ones)
They should outsource this to India or Israel.
Re: NASA admits it doesn’t have the funding to land humans on Mars
#49I'm a bigger fan of putting a semi-permanent ISS 2.0 on the surface of the moon vs. boots on Mars. I don't work directly in exploration systems, but I'm not the only one at NASA who feels this way. But more than anything I think we and the other executive agencies would take any strong commitment on an exploration and human spaceflight direction from congress that survives across presidential administrations over any…
But alas, I am a computer programmer and that's just what I think. I could very well be wrong and there could be a lot of value in having a manned lunar station.
Re: NASA admits it doesn’t have the funding to land humans on Mars
#50Earlier quoted context omitted.
NASA programs typically span multiple decades and run in the billions of dollars, The political pendulum sways from one side to the other side every 4-8 years, every new administration is looking for ways to cut down taxes. It's amazing they get anything done imho.
They should cut the defence budget. 611B/year it's a joke.
You don't need an official space weapons program to be able to drop heavy things from orbit. Nor do you need a fancy anti-satellite ballistics system when you can have one of your many astronauts sidle over and hit it with a hammer.