An international research, led by scientists from the University of Sheffield and with the participation of the Instituto de Astrofísica de Canarias, has discovered, using the HiPERCAM instrument of the Gran Telescopio Canarias at the Roque de los Muchachos Observatory (Garafía, La Palma), an ancient pulsating star in a double star system. The discovery, which is published in the journal Nature Astronomy, provides important information about how stars like our Sun evolve and eventually die.

Research led by Artemi Camps, who started it while he was studying for his doctorate in the Instituto de Astrofísica de Canarias and the University of La Laguna, and is now working at the Instituto de Astronomía of the UNAM (México) has discovered an expanding bubble in the disc of a galaxy. With a diameter of 15,000 light years, it is the largest bubble of its type observed in any galaxy. The study has recently been published in the journal Monthly Notices of the Royal Astronomical Society. A galaxy like the Milky Way is made up of hundreds of thousands of millions of stars, with a mixture

Nature magazine is publishing today a surprising study about the giant, ultra-hot planet WASP-76b in which researchers from the Instituto de Astrofísica de Canarias (IAC) have taken part. This exoplanet, 390 light years away towards the constellation Pisces, has days when its surface temperatures exceed 2,400 Celsius, sufficiently hot to evaporate metals. Its nights, with strong winds, cool down the iron vapour so that it condenses into drops of iron. This is the first result with the high resolution spectrograph ESPRESSO, an instrument co-directed by the IAC and installed on teh Very Large

An international team of astronomers in the project SPECULOOS, dedicated to the search for habitable planets, with scientists participating from the Instituto de Astrofísica de Canarias (IAC) has discovered an eclipse (termed an occultation) in a peculiar brown dwarf formed by two stars orbiting around each other. The results are just published in the journal Nature Astronomy. The finding was by chance, when the scientists were working on the results from the first light of one of the four telescopes of the project, in Chile. Shortly after the building of the first SECULOOS telescopes, and

An international team of astronomers, including researchers from the Instituto de Astrofísica de Canarias, has found for the first time an unusual star that oscillates on one side due to the gravitational attraction of another nearby star. The study, which is published in the journal Nature Astronomy, uses data from NASA's TESS satellite and has involved the collaboration of citizen scientists.

An international team of researchers led by the University of Warwick, with a member who is a scientist at the IAC has discovered white dwarf with unusual dimensions. This star could be, in fact, the result of the merger of two white dwarfs. The discovery is published today in the journal Nature Astronomy, and could resolve some questions about the evolution of white dwarfs, and about the number of supernova in our Galaxy. The star, which is 150 light years away, was identified by data from the satellite telescope GAIA of the European Space Agency (ESA). Based on these, the astronomers used