living a relatively calm childhood. The scintillation of blue supergiant stars caused by the presence of waves moving on their surface was a phenomenon practically unknown until recently, says Dominic Bowman, doctor of the Institute of Astrophysics of the Catholic University of Leuven and principal investigator of this study: “Before By having access to data provided by NASA’s Kepler / K2 and TESS missions, -explains- only the changes in brightness suffered by blue supergiants in a few stars of this type had been adequately investigated. In Astroseismology, the study of waves that propagate from the interior to the surface of the stars, we use these variations in brightness to have information about the physical and chemical processes that occur within

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these stars ”. This discovery has opened the doors Guinea Email List to a new line of research in the field of Astroseismology, which until now had focused on the study of the Sun and similar stars. According to Bowman, “the variability detected in the brightness of the blue supergiants has always been there; we just had to be patient and wait for the arrival of space telescopes like Kepler / K2 and TESS to be able to detect it “. It’s as if these rock stars have been performing the entire time, but only now have the concert doors been opened thanks to NASA space missions. Sergio Simón-Díaz, a researcher at the Instituto de Astrofísica de Canarias and the Universidad de La Laguna, co-author of this study and a member of the IACOB project team, points out that we have

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before us an exciting new era in the study of massive stars. And he adds: “Combining the information. provided by state-of-the-art space telescopes such as Kepler / K2, TESS and Gaia, with spectroscopic observations obtained by telescopes operating from the Canary Observatories, in the coming years we will be able to unravel still unsolved mysteries about their physical properties and their evolution. important cosmic machines that are massive stars ”. The observations of the GTC of the asteroid 2019 DS1 have significantly improved the determination of its orbit, which allows to predict when the object will approach Earth again and at what distance. 2019 DS1 was discovered on February 28, 2019 by the Catalina Sky Survey search program when

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