Heimildir
Án höfundar. (2010). Lifandi vísindi. Retrieved 03 27, 2015, from Lifandi vísindi: http://www.visindi.is/grein/hversu-lengi-lifdi-geimtikin-laika
Hurd, D. (2002). Sól, tungl og stjörnur. Reykjavík: Námsgagnastofnun.
NASA. (2015, 01 15). NASA. Retrieved 03 27, 2015, from http://nasasearch.nasa.gov/search?utf8=%E2%9C%93&affiliate=nasa&query=animals+in+space: http://nasasearch.nasa.gov/search?utf8=%E2%9C%93&affiliate=nasa&query=animals+in+space
Olsen, L. D. (2014; 8). Ferðalag til 7 framandi heima. Lifandi vísindi, 16-23.
Sævar Helgi Bragason. (2012). Sólkefið okkar. Retrieved mars 26, 2015, from Stjörnufræðivefurinn: http://www.stjornufraedi.is/alheimurinn/solkerfid-okkar/
http://is.wikibooks.org/wiki/%C3%9Eekkja_s%C3%B3lkerfi%C3%B0_okkar_og_nokkur_einkenni_%C3%BEess
Hurd, D. (2002). Sól, tungl og stjörnur. Reykjavík: Námsgagnastofnun.
NASA. (2015, 01 15). NASA. Retrieved 03 27, 2015, from http://nasasearch.nasa.gov/search?utf8=%E2%9C%93&affiliate=nasa&query=animals+in+space: http://nasasearch.nasa.gov/search?utf8=%E2%9C%93&affiliate=nasa&query=animals+in+space
Olsen, L. D. (2014; 8). Ferðalag til 7 framandi heima. Lifandi vísindi, 16-23.
Sævar Helgi Bragason. (2012). Sólkefið okkar. Retrieved mars 26, 2015, from Stjörnufræðivefurinn: http://www.stjornufraedi.is/alheimurinn/solkerfid-okkar/
http://is.wikibooks.org/wiki/%C3%9Eekkja_s%C3%B3lkerfi%C3%B0_okkar_og_nokkur_einkenni_%C3%BEess
Myndir - slóðir
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