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posted by takyon on Tuesday June 23 2015, @12:18AM   Printer-friendly
from the regolith-monolith dept.

On July 1, Johann-Dietrich Wörner will become the new general director of the European Space Agency. SPIEGEL speaks with him about his dream of building a colony on the moon and the difficulties of traveling to Mars.

SPIEGEL: Which celestial body would you like to travel to most of all?

Wörner: My dream would be to fly to the moon and build permanent structures, using the raw materials available there. For instance, regolith, or moon dust, could be used to make a form of concrete. Using 3-D printers, we could build all kinds of things with that moon concrete -- houses, streets and observatories, for example.

SPIEGEL: The only question is how you intend to transport European astronauts into space in the future. Currently, you are completely dependent on Russian Soyuz capsules. If relations with Russia continue to worsen, it could jeopardize joint flights.

Wörner: Russia is and remains an extremely reliable partner for us. Even in the Cold War, space travel helped ease political tensions. Just think of the famous rendezvous maneuver in the summer of 1975, when an American Apollo spaceship and a Soviet Soyuz spaceship docked while orbiting the earth. And today, we space travellers can once again help overcome the current period of crisis.

[...] SPIEGEL: Shouldn't we Europeans be capable of taking people into space without outside help?

Wörner: Unfortunately, we missed a number of opportunities. For instance, it would have been possible to convert the ATV cargo spacecraft into a manned spaceship. We should have done more with that.

SPIEGEL: What caused the project to fail?

Wörner: Money, as is so often the case in life. Every nation wants to shoot astronauts into space and toot its own horn for doing so. However, there is only limited enthusiasm among the ESA member states to pay for manned space travel. But perhaps there will be new opportunities at some point. I'm not giving up hope that we Europeans will create our own manned access to orbit.

Can we make it to the stars without national prestige being the goal?

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  • (Score: 2) by gnuman on Tuesday June 23 2015, @05:14PM

    by gnuman (5013) on Tuesday June 23 2015, @05:14PM (#199985)

    Concrete requires one thing that Moon doesn't have in abundance - water. Concrete is also based on carbon chemistry, again, something that moon doesn't have. []

    But then even if you could somehow build concrete without carbon or water, then it is still a very bad idea to build on surface. Moon doesn't have an atmosphere. It doesn't have a magnetic field. It's surface is exposed to solar flares. Anyone living in a surface structure will die from radiation poisoning.

    The only way to live on the Moon or on Mars is to build underground, like ants. Build a tunnel boring machine, and start building homes and roads underground. You are then protected from outside vacuum, outside radiation. The only things that could be placed on surface of these (near?) lifeless rocks are solar collectors, launch pads and maybe dumps.

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