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DTSTART;TZID=Europe/Paris:20250925T123000
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CREATED:20250912T083910Z
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SUMMARY:SO Colloquium: Dark and Quiet Skies: Challenges and Actions
DESCRIPTION:This is the term coined at the first international conference to address the growing threat of satellite megaconstellations. Astronomy requires a dark sky\, free from pollutants and radiation. In the best astronomical sites\, regulations are already being implemented to protect observational science. In Spain\, we were—and continue to be—pioneers in “sky protection” laws. \nThe uncontrolled development of space technology is confronting us with a new challenge: how to regulate the use of “Outer Space\,” a term referring to the region above approximately 100 km\, which does not fall under the jurisdiction of individual states. While the issue of local light pollution remains unresolved\, we now face the additional threat of contamination from the increasing number of satellites being launched and the radio emissions they use to communicate with Earth. \nThis debate has reached the United Nations\, the only body capable of providing global guidelines. Alongside the protection of science\, other key aspects are also at stake: culture\, health\, the environment\, and space security. Progress is more likely if we build arguments that include all these perspectives. For this reason\, it is essential to deepen the discussion and develop a sound strategy soon. \nFecha y lugar: 25/09/2025 – 12:30 | Salón de ActosCasiana Muñoz TuñónInstituto de Astrofísica de Canarias – IAC \n 
URL:https://www.iaa.csic.es/evento/dark-and-quiet-skies/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:SO Colloquium
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DTSTART;TZID=Europe/Paris:20250930T123000
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CREATED:20250714T110000Z
LAST-MODIFIED:20250915T113902Z
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SUMMARY:SO Colloquium: Magnetic fields on Extrasolar Planets: From Radio Emission to High-Energy Cosmic Rays
DESCRIPTION:Event though there is no firm evidence for their presence to date\, a considerable fraction of extrasolar planets are expected to host a magnetic field. At the same time\, the planetary magnetic field plays an important role in the evolution of a planet\, determining the protection of its atmosphere against the stellar wind\, against stellar coronal mass ejections (CMEs) and against cosmic rays. In view of the importance of exoplanetary magnetic fields\, various attempts have been undertaken in order to predict their intensity. We will present different models for planetary magnetic fields and compare their results. We will also present a number of methods that have been suggested for the observations of exoplanetary magnetic fields\, the most promising of which is the detection of planetary radio emission. We will also discuss the implications of the magnetic field on the planetary atmosphere via the effect of high-energy cosmic rays. \nFecha y lugar: 30/09/2025 – 12:30 | Salón de ActosDr. Jean-Mathias GriessmeierObservatorio del Radiotelescopio de Nançay\, Francia \n 
URL:https://www.iaa.csic.es/evento/magnetic-fields-on-extrasolar-planets-from-radio-emission-to-high-energy-cosmic-rays/
LOCATION:IAA – CSIC\, Glorieta de la Astronomía\, Granada\, España
CATEGORIES:SO Colloquium
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