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arXiv:1908.09339astro-ph.IM

The Spaceline: a practical space elevator alternative achievable with current technology

Zephyr Penoyre, Emily Sandford

Abstract

Perhaps the biggest hurdle to mankind's expansion throughout the Solar System is the prohibitive cost of escaping Earth's gravitational pull. In its many forms, the space-elevator provides a way to circumvent this cost, allowing payloads to traverse along a cable extending from Earth to orbit. However, modern materials are not strong enough to build a cable capable of supporting its own weight. In this work we present an alternative to the classic space elevator, within reach of modern technology: The Spaceline. By extending a line, anchored on the moon, to deep within Earth's gravity well, we can construct a stable, traversable cable allowing free movement from the vicinity of Earth to the Moon's surface. With current materials, it is feasible to build a cable extending to close to the height of geostationary orbit, allowing easy traversal and construction between the Earth and the Moon.

arXiv comments
In preparation for submission to Acta Astronautica. Questions and suggestions welcome
Journal reference
DOI
Subjects
astro-ph.IMInstrumentation and Methods for Astrophysics physics.space-phSpace Physics

On Hacker News

Linked by 3 identifiable commenters in 3 comments across 2 threads, from Sep 2019 to Sep 2019. Found in 2 HN submissions from Aug 2019 to Sep 2019. Open submission discussions.

Comments linking this paper, per year.

Discussed in comments2 threads

    • From the paper [0]: > Values taken straight from Wikipedia. :) [0] https://arxiv.org/pdf/1908.09339.pdf

      ykView on HNParent context

    • Good points. For anyone interested in skipping the superfluous and sensationalizing article, here is a direct link to the paper, avoiding the embedded tracking link: https://arxiv.org/abs/1908.09339

      m3atView on HNParent context

    • I think a better link might be the paper: https://arxiv.org/pdf/1908.09339.pdf Surprisingly (given the very bold claims) it comes from a reputable source.

      rwmjView on HNParent context

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