Space future

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Information about Space future

Published on March 11, 2014

Author: aak1978


The Future

Objectives •Exploration at Greater Distances •Extended Stays •Less Expenses

The Space Elevator … building our future

Space Elevator Basics (centrifugation)

The SE in Literature • Artsutanov, Y. 1960. V Kosmos na Elektrovoze, Komsomolskaya Pravda, (contents described in Lvov 1967 Science 158:946). • Isaacs, J.D., Vine, A.C., Bradner, H., and Bachus, G.E. 1966. Satellite Elongation into a true ‘Sky-Hook’. Science 151:682. • Pearson, J. 1975. The Orbital tower: a spacecraft launcher using the Earth’s rotational energy. Acta Astronautica 2:785. • Clarke, A.C. 1979. The Space Elevator: ‘Thought Experiment’, or Key to the Universe. Adv. Earth Oriented Appl. Science Techn. 1:39.

Proposed System: Overview  First elevator: 20 ton capacity (13 ton payload)  Constructed with existing or near-term technology  Cost (US$10B) and schedule (15 years)  Operating costs of US$250/kg to any Earth orbit, moon, Mars, Venus, Asteroids

Carbon Nanotubes (CNTs)

Climbers  Climbers built with current satellite technology  Drive system built with DC electric motors  Photovoltaic array (GaAs or Si) receives power from Earth  7-ton climbers carry 13- ton payloads  Climbers ascend at 200 km/hr  8 day trip from Earth to geosynchronous altitude

Anchor  Anchor station is a mobile, ocean- going platform identical to ones used in oil drilling  Anchor is located in eastern equatorial pacific, weather and mobility are primary factors

Challenges Vs. Advantages  Low operations costs - US$250/kg to LEO, GEO, Moon, Mars, Venus or the asteroid belts  No launch vibrations  Safe access to space - no explosive propellants or dangerous launch or re-entry forces  Easily expandable to large systems

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