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Director / Editor: Victor Teboul, Ph.D.
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Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

NASA's robotic prospectors are helping scientists understand what asteroids are made of – setting the stage for miners to follow someday

By Valerie Payré, Assistant Professor of Earth and Environmental Sciences, University of Iowa
Upcoming NASA missions will help scientists understand the composition of asteroids – which could inform companies one day hoping to commercially mine asteroids.The Conversation


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