One of the leading newspapers in Spanish, “El Pais”, has started to publish a special edition in its electronic version devoted to the International Year of Astronomy. There are several sections, from an image gallery, biographies, special reports and analysis, etc. This initiative has been carried out in collaboration with the Spanish Astronomical Society, a a large group of astronomers have taken part at different level.
One of the most difficult section has been the glossary, since we have been asked to define different concepts using a limited amount of words, in a plain language. In few cases, the process has been even more complicated, because mos of us only use them in English, and a translation into Spanish has been complex. Anyway, I believe it is worth the effort.