Tag: mining
Save the earth: mine space!
Ambitious plan to mine asteroids already has seen spacecraft launched.
What the frack?
As the search for oil and gas gathers pace in New Zealand Sam Judd investigates the controversial practice of hydraulic fracturing.
Fracking FAQs
Fracking, or hydraulic fracturing, is a technique for extracting gas from rock layers where a mix of liquid, sand and other chemicals (typically lubricants) is injected into the rock at high pressure. The injection causes the rock layers to develop cracks through which the gas moves, allowing it to be