Alberta, Canada is site of the world's largest extraction operations from oil sands, heavy earth laden with bitumen, a hydrocarbon-rich mineral.
"It is time for Congress to act, " Obama told workers as he stood in front of a backdrop of heavy earth-moving machinery.
My mention of mineral resource vulnerability may surprise some but I should point out the heavy dependency of rare earth minerals in technology such as mobile devices and consumer electronics, and the limited supply we have.
Lifting heavy spacecraft and fuel out of the Earth's gravity is expensive.
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Such journeys into low Earth orbit do not need the heavy-lifting oomph that more wide-ranging missions require, so the proposal is to contract out all of this local delivery work.
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Rare earth elements are a group of 17 heavy metals, which despite their name, are not particularly rare.
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As the clean-up and recovery consumes what stock is in place for earth movers, road graders and other heavy equipment for construction and infrastructure is put to work, the long lead-time required to build and deliver these machines may be a boon for companies like Caterpillar and its partners.
At the same time, the agency is working with its industry contractors to develop a heavy-lift rocket and space capsule to take Americans beyond Earth orbit to an asteroid and ultimately Mars.
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Pile: long heavy section of timber, concrete or metal, driven into the earth or seabed as support for another structure.
At least some of the incoming Republican panel chairmen and other senior GOP lawmakers, these officials said, may view the proposed test flight as circumventing congressional language to quickly develop a new heavy-lift NASA rocket able to transport astronauts past low-earth orbit.
U.S. satellite photos show images of disturbed earth in an otherwise grassy field, and tracking marks wide or tight heavy vehicle tracking marks--possible evidence that hundreds of bodies may have been dumped in mass graves.
The universe was divided into neat eternal zones: the earth was rough, rugged, and corrupt with mortality, and therefore had settled in, heavy and unhappy, at the center of the universe.
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