“Urania” is a popular Polish astronomy magazine, one of the oldest in the world among present journals of this type. The first official issue was published in 1922, but the origins of “Urania” are even older, as in 1919 and 1920 there were published a few issues of a predecessor of “Urania” with the same title. So we can say that “Urania” and the IAU are of the same age. The role of “Urania” has been changing during these 100 years, but the magazine has been always a very important entity for the astronomical community in Poland, both professional and amateur. Thousands of pages contain an historical record of astronomy in Poland, as well as the progress of astronomy in the world, including IAU activities.

We present recent activities delivering astronomy to the public by the Tenpla project in Japan. One is voluntary activities in the disaster area of the Great East Japan Earthquake. The other is holding tens of star parties and public lectures in the central area of Tokyo.

Since 1995, the University the Carabobo, in Venezuela, has come developing a program of astronomical popularization and learning Astronomy using the Non formal education methods. A synopsis of the activities is presented. We will also discuss some conceptual aspects about the extension of the knowledge like supplementary function of the investigation and the university teaching. We illustrate the characteristics of the communication with an example of lectures and printed material. The efficiency of the heuristic arguments could be evaluated through a ethnology study. In that order of ideas, we show some images of the activities of astronomical popularization. We can see the population and great concurrence with chronological (and cultural) heterogeneity. We conclude that the Non formal education, structured with characteristic different to the usual educational instruction, constitutes a successful strategy in the diffusion and the communicating astronomy.