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1. How can scientists be sure that the space probes they send to the planets and
... 50 Weirdest Objects . ... space flight . ... space physics . ... How can scientists be sure that the space probes they send to the planets and other celestial objects aren't contaminating these worlds? ... The Outer Space Treaty enacted in 1967 requires т??planetary protectionт?? т?? that countries take appropriate precautions when exploring space or bringing samples back to Earth. ... Get instant access to subscriber content on Astronomy.com! ... Celestial Protraits Download . ...
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Ссылки http://www.astronomy.com/News-Observing/Ask%20Astro/2012/09/Planetary%20protection.aspx -- 63.5 Кб -- 10.04.2016
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