The Spaceline: an Elevator From the Earth to the Moon

Artist illustration of a space elevator. Credit: NASA/Pat Rawling

Humanity’s future may lie in space, but getting out there is a very big challenge. In short, launching payloads into space from the bottom of Earth’s gravity well is quite expensive, regardless of whether or not reusable rockets are involved. And while some have suggested that building a Space Elevator would be a long-term solution to this problem, this concept is also very expensive and presents all kinds of engineering hurdles.

As an alternative, a pair of astronomy graduate students from the US and UK recommend an inspired alternative known as the Spaceline. This concept would consist of anchoring a high-tensile strength caple to the Moon that would extend deep within Earth’s gravity well. This would allow the free movement of people and materials between the Earth and Moon at a fraction of the cost.

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How Do We Terraform The Moon?

Artist's concept of a terraformed moon. According to a new study, the Moon may have had periods of habitability in its past where it had an atmosphere and liquid water on its surface. Credit: Ittiz

Welcome back to our ongoing series, “The Definitive Guide To Terraforming”! We continue with a look at the Moon, discussing how it could one day be made suitable for human habitation.

Ever since the beginning of the Space Age, scientists and futurists have explored the idea of transforming other worlds to meet human needs. Known as terraforming, this process calls for the use of environmental engineering techniques to alter a planet or moon’s temperature, atmosphere, topography or ecology (or all of the above) in order to make it more “Earth-like”. As Earth’s closest celestial body, the Moon has long been considered a potential site.

All told, colonizing and/or terraforming the Moon would be comparatively easy compared to other bodies. Due to its proximity, the time it would take to transport people and equipment to and from the surface would be significantly reduced, as would the costs of doing so. In addition, it’s proximity means that extracted resources and products manufactured on the Moon could be shuttled to Earth in much less time, and a tourist industry would also be feasible.

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Michael Laine Will Answer Your Questions on Space Elevators

Artists concept of a space elevator. Credit: Caltech


After our recent article featuring the concept of a lunar elevator, many of you posted questions about both lunar elevators and space elevators in general. Liftport’s Michael Laine has graciously agreed to provide answers for these questions, and if anyone has additional questions, leave them in the comment section here. We’ll post Michael’s answers in a subsequent post.

For those of you who have really big questions, you may want to attend the first lunar elevator workshop in Seattle, Washington this coming weekend, July 29-August 1 in Seattle Washington. See this link for more information.

And there’s also a space elevator conference August 13-15 at the Microsoft Conference Center in Redmond, Washington. Find more details at this link.