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400 years ago Galileo took the dark stains on the surface of the moon to be seas. He was wrong. Today, we are sending missions to the moon in search of water. These technological advances have been extraordinary: in the past 20 years 350 planets have been discovered outside of our solar system and several months ago the first images of them reached us via satellite. Yet, the universe remains largely unknown.
From Ibn Haitham Alhazen’s theory about the dark spots on the moon (11th century) to the recent discovery of exoplanets in April 2009, this issue, published on the occasion of the International Year of Astronomy, traces these steps in our long history of observing the stars. More
Published by: UNESCO, 2006
Language: English / French
under the Auspices of UNESCO
Published by: IRCK China
Language: English
For hardcopies contact: r.missotten@unesco.org
Published by: IYPE Secretariat, 2009
Language: English
In the Service of Society
Published by: UNESCO
Language: English