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На этой странице приведены все страницы, которые ссылаются на http://www.astronomy.com/issues/2007/february-2007. Показаны документы 1 - 1 из 1.
1. What is dark matter? | Astronomy.com
... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... What is dark matter? ... Dark matter was proposed by Swiss-American astronomer Fritz Zwicky (1898-1974) in 1933 to explain why the Coma galaxy cluster appeared to have a stronger gravitational field than expected if it were composed of matter that interacts with light. Get instant access to subscriber content on Astronomy.com! ...
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Ссылки http://www.astronomy.com/magazine/ask-astro/2007/02/what-is-dark-matter -- 62.7 Кб -- 10.04.2016
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