Category Archives: Space

Business, Economics, Political Commentary, Space, Technology and Society

Andy Weir On Elon Musk

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Ashlee Vance had a conversation with him:

I love that NASA is working on new technologies and new stuff, but it just seems way more expensive than alternatives. You’re talking about spending $20 billion on a booster to put 150,000kg in orbit. Meanwhile, SpaceX intends to put 53,000kg into space for $100 million per booster. You could buy three of SpaceX’s Falcon Heavy rockets for $300 million, then spend $1 billion to assemble whatever heavy thing you wanted to put in space, and keep the other $8 billion. It just seems like this huge discrepancy in expenses. Governments don’t always do the economically viable thing, right? There’s a lot of politics involved.

You don’t say.

Media Criticism, Political Commentary, Space, Technology and Society

Why Haven’t We Built Cities In Space?

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There’s a long piece over at Gizmodo, mostly about the NRC report. Sadly, the reporter didn’t seem to talk to anyone except Ariel Waldman:

The US has a plan for Americans to live in space. In 2012, the National Research Council was commissioned by Congress to roadmap the future of human space exploration. Last June, the team published its findings in a massive report, which called for several action steps to be taken immediately.

No, actually, the NRC report was not really a plan. It was a set of fairly vague and broad recommendations. There is no plan.

Statistically, China’s space program is a few decades behind the US, but consider these facts: Just in the last two years the country has sent ten people into space.

Really? No, not really. In the last two years, China has sent three people into space. Go back three years, and they’ve sent six.

The agency is currently working on a mission to Mars and a proposal for its own space station, which is planned for sometime in the 2020s. Soon, China will undoubtably surpass the US in its efforts for space colonization.

That’s ridiculous. China is using legacy Soviet-type hardware. No one is going to colonize space that way.

Thanks to a 2011 Congressional act that bars the US from collaborating with China’s space program, NASA is not allowed to work directly with the most quickly accelerating efforts to get humans into space. Thanks to a 2011 Congressional act that bars the US from collaborating with China’s space program, NASA is not allowed to work directly with the most quickly accelerating efforts to get humans into space. This is a huge problem. “There are only two places that are going into space,” says Waldman, referring to current crewed missions by Russia and China. “We’re not one of them, and we’re not in collaboration with the other one of them.”

This is delusional. China is not the place with the “most quickly accelerating efforts to get humans into space.” That is happening in Hawthorne and Mojave, California, and Seattle. We do not need to work with China or Russia to get into space, and we are not in a race with them.

So much of what seems to motivate any space exploration is the concept of flag planting, which the US pretty much invented: I HEREBY CLAIM THIS MOON FOR AMERICA. Take away these imperialistic aspirations and the goals of human spaceflight become unmeshed with these ideas of nation-building—and a lot more pragmatic.

Ummmmmm…no. We did not CLAIM THIS MOON FOR AMERICA. We “came in peace for all mankind.”

Anyway, you get the idea.

Space, Technology and Society

Mission To Mars Orbit

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The FISO presentation from May has been released. I’ll definitely use this in the project, to show how it could be improved by dumping SLS/Orion.

[Update a while later]

OK, I’ve glanced through it. There isn’t much in the way of numbers (Isp, mass, etc.) to make it easy to come up with alternatives. I will note that they are looking at 17 or eighteen SLS flights over a two-decade period, or about once a year. That probably implies a couple billion per flight, ignoring all the money we’re currently wasting on development.

Business, Political Commentary, Space, Technology and Society, War Commentary

John McCain

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In which he is an idiot (sorry, behind a paywall):

The head of the Senate Armed Services Committee (SASC) on Tuesday downplayed the potential national security significance of NASA
continuing payments to Russia to get astronauts to and from the International Space Station (ISS).

“I have a much bigger problem with the Russian rocket engine,” Chairman John McCain (R-Ariz.) told reporters at the Capitol. “I don’t see what the impact is, financially, of the Russian riding as compared with $300 million worth of rocket engines. There’s no comparison.”

But this is what I found interesting:

McCain’s counterpart in the House, Rep. Mac Thornberry (R-Texas), told reporters Tuesday that U.S. dependence on Russia for space-related items is a national security issue. But Thornberry also said the challenge with paying for Russian rides to ISS is much like the RD-180 scenario: one faced with limited options.

“It ought to be a lesson for all of us about letting key capability atrophy and becoming dependent upon somebody else whose reliability can be called into question,” Thornberry said. “That doesn’t mean you snap your fingers and solve it any more than you snap your fingers and solve the Russian engine issue.”

Actually, we could. All we have to do is be more accepting of astronaut risk.