Google Play icon

New NASA mission to help us learn how to mine asteroids

Share
Posted August 9, 2013
These photos show the relative size of three asteroids that have been imaged at close range by spacecraft. Mathilde (37 x 29 miles) (left) was taken by the NEAR spacecraft on June 27, 1997. Images of the asteroids Gaspra (middle) and Ida (right) were taken by the Galileo spacecraft in 1991 and 1993, respectively. Credit: NASA/JPL/NEAR and Galileo missions

These photos show the relative size of three asteroids that have been imaged at close range by spacecraft. Mathilde (37 x 29 miles) (left) was taken by the NEAR spacecraft on June 27, 1997. Images of the asteroids Gaspra (middle) and Ida (right) were taken by the Galileo spacecraft in 1991 and 1993, respectively. Credit: NASA/JPL/NEAR and Galileo missions

Over the last hundred years, the human population has exploded from about 1.5 billion to more than seven billion, driving an ever-increasing demand for resources. To satisfy civilization’s appetite, communities have expanded recycling efforts while mine operators must explore forbidding frontiers to seek out new deposits, opening mines miles underground or even at the bottom of the ocean.

 

Asteroids could one day be a vast new source of scarce material if the financial and technological obstacles can be overcome. Asteroids are lumps of metals, rock and dust, sometimes laced with ices and tar, which are the cosmic “leftovers” from the solar system’s formation about 4.5 billion years ago. There are hundreds of thousands of them, ranging in size from a few yards to hundreds of miles across. Small asteroids are much more numerous than large ones, but even a little, house-sized asteroid should contain metals possibly worth millions of dollars.

There are different kinds of asteroids, and they are grouped into three classes from their spectral type – a classification based on an analysis of the light reflected off of their surfaces. Dark, carbon-rich, “C-type” asteroids have high abundances of water bound up as hydrated clay minerals. Although these asteroids currently have little economic value since water is so abundant on Earth, they will be extremely important if we decide we want to expand the human presence throughout the solar system.

Read more at: Phys.org

Featured news from related categories:

Technology Org App
Google Play icon
85,464 science & technology articles

Most Popular Articles

  1. New treatment may reverse celiac disease (October 22, 2019)
  2. "Helical Engine" Proposed by NASA Engineer could Reach 99% the Speed of Light. But could it, really? (October 17, 2019)
  3. The World's Energy Storage Powerhouse (November 1, 2019)
  4. New Class of Painkillers Offers all the Benefits of Opioids, Minus the Side Effects and Addictiveness (October 16, 2019)
  5. Plastic waste may be headed for the microwave (October 18, 2019)

Follow us

Facebook   Twitter   Pinterest   Tumblr   RSS   Newsletter via Email