Free Astronomy Magazine March-April 2022

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 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 ASTROFILO l’ March-April 2022 BI-MONTHLY MAGAZINE OF SCIENTIFIC AND TECHNICAL INFORMATION FREELY AVAILABLE THROUGH THE INTERNET English edition of the magazine The Webb Space Telescope is ready to amaze us What happens when two stars share an atmosphere? Black hole found hiding in star cluster outside our galaxy Proxima b, a truly elusive planet The first supernova explosion of a Wolf-Rayet star The VLT images planet around most massive star pair to date Mini-jet discovered near Sagittarius A* The sundial, from antiquity to computer drawing Astronomers discover an ultra-light and super-fast sub-Earth Closest pair of supermassive black holes uncovered The Gemini South catches a one-winged butterfly 4 12 16 20 34 36 38 42 50 52 54