This section includes scientific and technological news from the IAC and its Observatories, as well as press releases on scientific and technological results, astronomical events, educational projects, outreach activities and institutional events.

  • Photogram from an animation which shows the ultrahot Neptune orbiting its star Credit: Ricardo Ramirez, University of Chile
    The first “ultrahot Neptune” is discovered

    A team of astronomers from the University of Chile, in collaboration with the Instituto de Astrofísica de Canarias (IAC) and the University of La Laguna (ULL), has discovered the first “ultrahot Neptune”, which is in orbita round the nearby star LTT 9779. The planet is so close to its star that its year lasts only 19 hours, and the star’s radiation heats the planet to more than 1,700 degrees centigrade. At those temperaturas, the heavy elements such as iron can be ionized in the atmosphere and molecules can dissociate, which makes this a unique laboratory for studying the chemistry of

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  • Sunrise at equinox (19 Marzo 2019) from Lácara dolmen (La Nava de Santiago, Extremadura, Spain)
    The autumnal equinox from the Dolmen of Valdecaballeros

    Next Tuesday, September 22nd, at 13:30 UT the Earth will be at a specific point in its orbit round the Sun: the September equinox. The September and March equinoxes are the only days in the year when the Sun rises exactly in the east and sets exactly in the west, across the whole planet.

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  • En esta ilustración, WD 1856 b, un potencial planeta del tamaño de Júpiter, orbita su tenue estrella enana blanca cada día y medio. Crédito: Centro de Vuelo Espacial Goddard de la NASA.
    TESS, Spitzer and the GTC detect a planet orbiting a white dwarf for the first time

    With data from NASA’s TESS satellite, from the now retired Spitzer Space Telescope, and the Gran Telescopio Canarias (GTC) an international team of astronomers, with participation from the Instituto de Astrofísica de Canarias (IAC) has detected what appears to be an intact planet in orbit around a white dwarf, the dense remains of a star similar to the Sun , and only 40 % bigger in diameter than the Earth. This finding is published today in Nature magazine.

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  • Photometers at the Teide Observatory
    Natural darkness to preserve night-time ecosystems

    After several months of waiting, this summer the EELabs project, led by the Instituto de Astrofísica de Canarias, has started to deploy its first network of photometers.

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  • Artist’s conception of waves trapped between the surface of a sunspot (lower image, taken with the GREGOR Fabry-Perot Interferometer) and the transition region (upper image, by courtesy of NASA/SDO and the scientific team of AIA). Credit: Gabriel Pérez Díaz, SMM (IAC).
    The presence of resonating cavities above sunspots has been confirmed

    An international team of researchers, led by the Instituto de Astrofísica de Canarias (IAC), has confirmed the existence of resonant cavities above sunspots. These results, recently published in two articles in the journals Nature Astronomy and The Astrophysical Journal Letters, have settled a debate lasting several decades about the nature of the waves in the active regions of the Sun. Sunspots are darker regions which often appear on the Sun’s surface. They are caused by strong concentrations of magnetic field, and can be as big as the Earth, or even much bigger. From the end of the 1960’s

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  • The proyect moved around a part of the zone of Allande, and visited the villages of Berducedo, Monón, Fonteta, and Pola de Allande. Credit: Raquel González Cuesta.
    Allande Stars: beyond the stars, closer to our culture

    The Allande Stars project, funded and supported by the Instituto de Astrofísica de Canarias (IAC), is bringing Astronomy to more than 300 people to the zone of Allande, in Asturias, under the strictest safety measures, and in a spirit of unity under the same sky. Last weekend saw the activities in the Allande Stars project (, an initiative in itinerant science outreach whose aim is to bring Science and in particular Astronomy closer to the rural villages in the south west of Asturias, who in general have less access to museums, cultural lectures, and other similar

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