Jimmy Snyder said:
We already do all of the highlighted things.
We don't do any of the highlighted things, and Ryan left out nice things such as precision landing. We don't know how to do it. More on this later in this post.
Some Slacker said:
I mean look at poor NASA, having to turn to the public to 'bring groceries' to the ISS.
Turn to the public? There would be no SpaceX without NASA. From
http://en.wikipedia.org/wiki/SpaceX#Funding
Funding
As of May 2012, SpaceX has operated on total funding of approximately one billion dollars in its first ten years of operation. Of this, private equity has provided about $200M, with Musk investing approximately $100M and other investors having put in about $100M. The remainder has come from progress payments on long-term launch contracts and development contracts. NASA has put in about $400-500M of this amount, with most of that as progress payments on launch contracts.
About half of the total funding to SpaceX came from NASA, and a good chunk of the rest came from the DoD. Musk would have had a very hard time finding investors had it not been for those government contracts. The development of that Dragon to the ISS was funded almost entirely by NASA. This is something that NASA has very much wanted to happen for a long time, and has been working with industry to make that happen. (Well, some parts of NASA. Other parts of NASA are stuck in the stone age.)
KiwiKid said:
I would also like to point you to
this. It's really not as easy to land on Mars with huge payloads as you may think.
Nice find. This is exactly what I've been saying about landing on Mars, multiple times, in this thread. From that article,
There’s no comfort in the statistics for missions to Mars. To date over 60% of the missions have failed. The scientists and engineers of these undertakings use phrases like “Six Minutes of Terror,” and “The Great Galactic Ghoul” to illustrate their experiences, evidence of the anxiety that’s evoked by sending a robotic spacecraft to Mars — even among those who have devoted their careers to the task. But mention sending a human mission to land on the Red Planet, with payloads several factors larger than an unmanned spacecraft and the trepidation among that same group grows even larger. Why?
Nobody knows how to do it.
The article goes on to talk about how the atmosphere of Mars is more than thick enough to cause trouble, lots of trouble, for a vehicle hitting the atmosphere at hypersonic speeds but not near thick enough to provide any advantages in the way we take advantage of the Earth's atmosphere.