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An international scientific team, including the Instituto de Astrofísica de Canarias (IAC), has detected distortions in the brightness of a galaxy's disc that could be explained by the gravitational effect of an unknown neighbouring galaxy. Named GTC-1, the satellite galaxy was discovered using ultra-deep images obtained with the OSIRIS camera of the Gran Telescopio Canarias, located at the Roque de los Muchachos Observatory in La Palma. The finding provides a possible explanation for a puzzle about way the light fades out at the edges of galaxy disks, a mystery that has bothered the
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The nearly primordial origin of an ancient star of the Milky Way confirmed by an international team of researchers thanks to the ESPRESSO spectrograph. Stars with very low content of chemical elements are considered to be the older stars in the Milky Way. Formed a few hundred million years after the Big Bang, a very small time compared to the age of the Universe, these stars are real fossils which encode the first phases of the chemical evolution of the Universe in their atmosphere. The star SMSS1605-1443, discovered in 2018, was identified as one of the earliest stars in the galaxy, but its
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The editorial Springer is publishing the book “Astronomy of Ancient Egypt: A Cultural Perspective” by the researcher at the Instituto de Astrofísica de Canarias (IAC) Juan Antonio Belmonte, and the egyptologist from the Universitat Autónoma de Barcelona (UAB) Josep Lull. The book analyzes and synthesizes the collected research during the last two hundred years about the cosmogony and the cosmovision of ancient Egypt, together with up to date research. The book will be presented in a panel discussion on Friday June 30th at 18:00 h in the Museum of Science and the Cosmos (MCC) of Tenerife, in
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