Key Pages
Category: | Science and Technology |
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Energy - natural resources, space
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Outlook: |
The moon's rich mineral deposits and other natural resources may one day be mined to fuel space exploration throughout our solar system and provide energy for Earth.
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Summary Analysis: |
According to the 'Big Whack' theory of the moon's origin, some 4.5 billion years ago the moon formed from the debris of a collision between the young Earth and another nascent planet about the size of Mars. As a result, the moon has much the same composition as Earth's mantle. Aluminium, titanium, magnesium, silicon, iron, and carbon are all present, along with substantial amounts of oxygen and hydrogen locked within the lunar soil. These raw materials could be used in the manufacture of everything from base station modules to rocket fuel for further space exploration. The moon is particularly well suited for rocket fuel production: mixing raw hydrogen with lunar soil could provide a crude chemical energy source for missions to Mars and elsewhere. Since moon launches require only a fraction of the energy needed by vehicles to escape Earth's gravitational pull, even the most primitive fuel systems could work for moon-based, near-Earth expeditions.
Once established, a lunar colony could also produce solar cells to fuel itself and perhaps even return energy to Earth. Large solar farms in direct, constant sunlight could beam energy to Earth via large microwave antennas and provide enough energy to power all of Earth by 2050, according to David Criswell. The moon also contains many times the supply of helium-3 that we have here on Earth. If effective fusion power becomes feasible at some point in the future, the moon could be a cost effective way to obtain the necessary helium-3. According to former Apollo astronaut Harrison Schmitt, one tonne of helium-3 could be returned to Earth at a cost of roughly $1 billion. Sold at $4 billion, fusion power derived from this helium would be price-competitive with oil at $30/barrel.
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At A Glance: | When: |
21-50+ years
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Where: |
Global
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How Fast: |
Years
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Likelihood: |
Medium
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Impact: |
Medium-Low
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Controversy: |
High
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Posted at Dec 20/2006 10:08AM:
Giorgio Gaviraghi
I believe that the Moon , for the utilization of its resources , must not have our priority.
The Moon is at the bottom of a gravity well, as is Earth and at the actual state of technology any initiative will prove unaffordable and excessively costly to be valid .
I believe that priority should be given to NEOs asteroid, that can provide resources and materials at a fraction of the cost and efforts as those of lunar origin.
Priority should be given to asteroid research, deflection and utilization systems.
Asteroids , properly deflected in a cycler trajectory, as Earth-Moon or Earth-Mars and properly equipped , could provide low cost accessibility to both bodies.
Only when such infrastructural and transportation systems wil be available the Moon and Mars could be reached , utilized and colonized at affordable costs and with credible business plans.
Posted at Jan 11/2007 05:15AM:
Simon Bunn: I heartily agree with Giorgio Gaviraghi's suggestion and cite 'Mining the Sky' by John S. Lewis as an authorative document on the subject of asteroid exploitation. NASA take note!