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PR: 8 | European Space Agency - http://www.esa.int/ We discover.. We research.. We Explore...this site offers oportunities to research our projects and to learn much about them , through pictures , videos and research papers and reports, Always new always exciting and always easy to understand. |
PR: 8 | a great space exploration - http://www.esa.int one of the greatest places to learn about space |
PR: 5 | Planet Dictionary - http://www.alcwin.org/ Site listing several types of dictionaries related to the sciences. |