Free Astronomy Magazine September-October 2021

Editor in chief Michele Ferrara Scientific advisor Prof. Enrico Maria Corsini Publisher Astro Publishing di Pirlo L. Via Bonomelli, 106 25049 Iseo - BS - ITALY email info@astropublishing.com Internet Service Provider Aruba S.p.A. Via San Clemente, 53 24036 Ponte San Pietro - BG - ITALY Copyright All material in this magazine is, unless otherwise stated, property of Astro Publishing di Pirlo L. or included with permission of its author. Reproduction or retransmission of the materials, in whole or in part, in any manner, with- out the prior written consent of the copyright holder, is a violation of copy- right law. A single copy of the materi- als available through this course may be made, solely for personal, noncom- mercial use. Users may not distribute such copies to others, whether or not in electronic form, whether or not for a charge or other consideration, with- out prior written consent of the copy- right holder of the materials. The publisher makes available itself with having rights for possible not charac- terized iconographic sources. Advertising - Administration Astro Publishing di Pirlo L. Via Bonomelli, 106 25049 Iseo - BS - ITALY email admin@astropublishing.com ASTROFILO l’ September-October 2021 BI-MONTHLY MAGAZINE OF SCIENTIFIC AND TECHNICAL INFORMATION FREELY AVAILABLE THROUGH THE INTERNET English edition of the magazine More “Earths” but fewer complex biospheres The first clear image of an exomoon-forming disc Giant comet found in outer solar system Mystery of Betelgeuse’s dip in brightness solved Hubble inspects a contorted spiral galaxy Heavy metal vapours unexpectedly found in comets NEID − the new planet hunter VLT and ALMA reveal stunning features of nearby galaxies The most precise look at the Universe’s evolution L 98-59, a rather interesting system Astronomers uncover briefest supernova-powered gamma-ray burst 4 16 20 24 26 28 32 40 44 48 52