CLASP and CLASP2 are opening a new window for the investigation of magnetism in solar and stellar physics. In 2008 an international team of solar physicists started a novel project of space experiments. By means of telescopes and instruments launched on board of NASA suborbital rockets, unprecedented measurements of the polarization of the ultraviolet light emitted by the Sun in several atomic lines were performed. Such spectro-polarimetric observations are needed for obtaining information on the magnetic field in the enigmatic chromosphere-corona transition region of the solar atmosphere

For three days some 120 people met in Los Cancajos (La Palma) to participate in a workshop to exchange experiences, organized by the European Strategic Forum on Research Infrastructure (ESFRI). As well as discussing the European policies and initiatives in this area, the participants could get to know, at close range, the Roque de los Muchachos Observatory, and two of the projects, with major participation by the Instituto de Astrofísica de Canarias, which comprise part of the ESFRI Roadmap: The CTA array and the future European Solar Telescope (EST).

Next Monday, November 11th, it will be possible to follow the transit of the planet Mercury across the face of the Sun from the Canary Island Observatories, from 12:36 p.m. to 18:04, on the channel YouTube IAC vídeos, of the Institute de Astrofísica de Canarias. A transit is defined as the passage of one astronomical object in front of another, so that the nearer occults a part of the surface of the farther. Only the inner planets (Marcury and Venus) can transit the Sun, from our viewpoint on Earth. In any century there are 13 transits of Mercury and the following transit will not occur

The transit of the planet will take place next Monday, November 11, from 12: 36h to 18: 04h. It will last almost five and a half hours, and will be broadcast entirely and live from the Canary Islands Observatories. Transits of the Inner Planets - Venus and Mercury - are rarer than the eclipses of Sun and Moon. On average we will have 13 transits of Mercury per century. The last transit of Venus was June 2012. We had transits of Mercury in the years 2003, 2006 and 2016 and the next one will not occur until 2032. Few readers of this article will have seen Mercury, a very small planet. Ganymede

The Instituto de Astrofísica de Canarias (IAC) will participate with a number of different activities in Tenerife and La Palma within the framework of the Weeks of Science and Innovation organized by the Canary Agency for Research, Innovation, and the Information Society (ACIISI) of the Canary Regional Government, from 6th to 24th of November. The main aim of these weeks is to promote and popularize scientific and innovative knowledge among the citizens, as well as to encourage the participation of the different participants in the system of R+D*I in the Archipelago. Each year this event