Today Elon Musk gave a speech at the International Astronautical Congress in Guadalajara, Mexico. The speech laid out SpaceX’s proposed architecture for building what he presently calls his interplanetary transport system. The image on the right is one of his talk slides, showing the basic concept, which is built around using the company’s new Raptor engine — still under development — which only got its first test firing this past week.
The plan is ambitious and visionary, which from Musk is not surprising. It is also aimed to be as practical and as cost effective as possible, which also is not surprising coming from Musk. The rocket itself will be larger than both the Saturn 5 and SLS, but not significantly more. Compared to those government rockets however it will be far cheaper and faster to build, though Musk’s hope that they will be launching their first test flights in four years is almost certainly too optimistic. The concept is to use what they have learned with the Falcon 9 to build a bigger rocket with a reusable first stage that launches a large second stage that is either the spaceship taking people to Mars or a giant tanker for refueling that spaceship.
In one of Musk’s early slides he noted something that I have been arguing for decades. “Speading the required lift capacity across multiple launches substantially reduces development costs and compresses schedule.” Though he is still proposing a heavy-lift rocket, he is also following in the footsteps of Wernher Von Braun by proposing that any Mars mission will require some assembly in orbit.
The plan is also aimed at making space travel as affordable as possible. Musk structured the design in as many ways as possible to make it as efficient and as inexpensive as possible. It still won’t be cheap, at about $140K per ton, but at that price it will be affordable to a lot of people. He also mentioned that it include free passage back to Earth.
I doubt we will see this system built as outlined today in the time span predicted by Musk. At the same time, I would not be surprised if we do see some variation of it, and see it built within the near future. In 2011 Musk proposed recovering his Falcon 9 first stages by landing them vertically. The idea seems radical. He got it done in four years. There is every reason to believe he will make this Mars proposal happen as well.
Now available in hardback and paperback as well as ebook!
From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.
“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of founder of the Mars Society.
All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. The ebook can also be purchased direct from my ebook publisher, ebookit, in which case you don't support the big tech companies and I get a bigger cut much sooner.
Autographed printed copies are also available at discount directly from me (hardback $24.95; paperback $14.95; Shipping cost for either: $5.00). Just email me at zimmerman @ nasw dot org.