We live in a period where new media develops at amazing speed: the case of Youtube, becoming in few months one of the most visited website in the world, or the incredibly fast diffusion of audio and video podcasting, or the acquired relevance and authoritativeness of blogs in the dissemination of scientific information, are paradigmatic. Yet, there is little doubt that old media such as traditional television remain a reference for the largest sector of the population. Indeed, all surveys show that when dealing with scientific information, television remains the most relevant medium by a large majority of European (although in eastern Europe, due to a more trustful reputation, radio has also a particularly relevant position, and the internet is gaining favour among younger audiences).

This article presents some of the challenges faced in developing an interactive exhibit on nanoscience and nanotechnology in Brazil. Presenting a scientific-technological area which is still in formation and which is little known by the population leads to a (re)consideration of the role of museums and science centers in the conformation and consolidation of scientific practice itself. Museographically, the exhibit deals with the challenge of making matter visible in an expression which is distant from the human perception. Some reflections are presented here on the option of musealization chosen which come from a broader evaluation of the exhibit.

What pushed His Excellency Enrico Fermi, acclaimed Academician of Italy entitled to a state car and driver, to leave Italy all of a sudden in December 1938 in order to reach New York, after a short stop in Stockholm for the ceremony that celebrated him as a Nobel laureate for physics, and to accept a job as a simple physics lecturer at the Columbia University?

One can no longer rely on the presumption that scientists comply with the Mertonian value of disinterest and assume that they always tell the truth when spreading the results of their research projects. This can be rightly considered as the gist of the four-page report submitted to the board of the American journal Science by the committee chaired by the chemist John Brauman, from the Stanford University, and comprising three members from the Senior Editorial Board of the same journal, two eminent biologists specialised in stem cell research and a top editor from the other major general press medium of the Republic of Science, the British journal Nature.

An effective communication of astronomy cannot take place without considering the view the general public has on the universe. Through a number of narrative interviews with non-experts, a research was carried out on personal cosmologies, to outline the public’s heterogeneous astronomical imagery. The result is a bundle of conceptions, perceptions and attitudes which are useful to interpret the difficulties the public experiences when facing the contents of astrophysics, and to establish an ongoing dialogue.

Science information professionals need to make choices through which media they want to communicate with the public. In reaching large audiences outside the domain of formal diffusion of knowledge, the choice may be between the old medium television and the new medium Internet. It seems that general scientific research is focused more and more on the Internet as a favorite means for information exchange and that the old mass medium television plays only a minor role. But when we look at (1) how the public spends their leisure time on television and the Internet, (2) how effective these media are in transferring information, and (3) how much these media are trusted as reliable sources of information, the old medium television should still be regarded as the number one medium to be used for science communication, although there are some limitations for its use.

The attacks of September 11 2001 and in particular, the sending of letters containing anthrax spores the following October had a profound effect on society, and at the same time on science and its communicative mechanisms. Through a quanto-qualitative analysis of articles taken from four publications: two daily newspapers, the Corriere della Sera from Italy and the New York Times from the United States and two science magazines, Science and Nature, we have shown how the aforementioned events provoked the emergence of media attention regarding bioterrorism. A closer reading of the articles shows that today, science – including that found in science magazines – is closely related to politics, economics and the debate over the freedom to practice communicate. The very mechanisms of communication between scientists were changed as a result of this debate, as can be seen from the signing of the Denver Declaration in February 2003, which brought about the preventative self-censorship of publication of biomedical research findings.

The Royal Society published in late June a report entitled «Science Communication. Survey of factors affecting science communication by scientists and engineers». It is an in-depth survey on the communication addressed to non-specialist audiences that was carried out interviewing a wide and representative sample of UK scientists and engineers.

In last times scientific PR activities are increased by number and quality. Especially in United States and, more recently, in Europe all the most important research institutions and universities have been equipped with communication officers able to circulate their own information through mass media. This is undoubtedly a positive news for science. In spite of this, it’s necessary to think about which effects can be created by marketing activity on scientific communication. In this commentary we asked some scientific professionals to tackle these problems from different points of view.

Following the example of the Exploratorium in San Francisco, interactive science museums are meant to be informal and enjoyable places where visitors, regardless of their age and background, are stimulated to practice their abilities to explore the world from a scientific point of view or to reacquire it in the case of adults who are far from science for professional reasons. Our study, which belongs to a relatively recent, but increasingly richer and complex tradition of researches on this topic, aims at contributing to answering the question whether, within the context of hands-on museums, this desired reacquisition of scientific exploration actually occurs for all visitors; more precisely, it aims at contributing to the discussion resulting from this question with reference to both possible answers and methods to find them. The study described below was carried out for a Science Communication Master thesis in Trieste (student: Monia Cardella, supervisor: Paola Rodari) and, therefore, it is inevitably limited: in fact, in order to deal with such a complex issue and to perform more detailed investigations on the field longer time and more resources would have been necessary. However, both methods used and results obtained from it, although provisional, are significant enough to deserve our attention.