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International Year of Astronomy - IYA2009
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Are we made of 'stardust'?
Of course, the human body is not made of dust; it comprises mainly water, proteins, fats and mineral nutrients. These substances are in turn made up of chemical elements, or different 'atom types', which are primarily hydrogen, oxygen, carbon and nitrogen. But where did these chemical elements come from – how were they created?
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Last update: 05/10/2009 10:31:46
Links
Exhibition "Out of this World"
International Year of Astronomy 2009
CosmicDiary - Astronomy Blogs
Daily Podcasts at 365 Days of Astronomy
ESA - IYA2009
Planetariumshow "Touching the Edge of the Universe"
Archive: Astronomy Questions of the Week