Free Astronomy Magazine March-April 2025 ARABIC VERSION

BI-MONTHLYMAGAZINEOFSCIENTIFIC AND TECHNICAL INFORMATION FREELYAVAILABLETHROUGH THEINTERNET March-April2025 Englisheditionofthemagazine World’sdarkestandclearestskies at risk DECamspiestheoutskirtsof Messier 83 Extremesupersonicwindsmeasuredon WASP-127b A‘MilkyWay’intheyoung Universe Exocometbeltsarechangingourunderstanding of planetary systems l A ’ STROFILO Editorinchief MicheleFerrara Scientificadvisor Prof.EnricoMariaCorsini Publisher Astro Publishing di Ferrara M. Via Bonomelli, 106 25049Iseo-BS-ITALY emailinfo@astropublishing.com InternetServiceProvider ArubaS.p.A. ViaSanClemente,53 24036PonteSanPietro-BG- ITALY Copyright All material in this magazine is, unless otherwise stated, property of Astro Publishing di Ferrara M. or includedwithpermissionofitsauthor.Repr oduc- tion or retransmission of the materials, in whole or in part, in any manner, withoutthepriorwrittenconsentof the copyright holder, is a violation of copyright law. A single copy of the ma- terials available through this coursemay be made, solely for personal, non- commercial use. Users may not distrib- ute such copies to others, whether or not in electronic form, whether or not for a charge or other consideration, without prior written consent of the copyright holder of the materials. The publisher makes available itself with havingrightsforpossiblenotcharacter- ized iconographic sources. Advertising - Administration Astro Publishing di Ferrara M.Via Bonomelli, 106 25049Iseo-BS-ITALY emailadmin@astropublishing.com Thelargestphotomosaicofthe Andromeda galaxy Planet-formingdiskslivedlongerinearly Universe Asecondsuperstarcluster in the LMC Unprecedentedfeaturesatthebrinkofan active black hole Firsteverbinarystarfoundnear Sagittarius A* WebbrevealsintricateCassiopeiaA light echoes 4 10 14 18 22 26 32 36 40 44 48 ــــــــﻞﺷــــــــﻬﺮ ﻦ ــــــــﺔ ﺗﺼــــــــﺪر ﻣﺠﻠــــــــﺔ ﻋﻠﻤ ــــــــــــﺔ ــــــــــــﺔ واﻟﺘﻘﻨ ﻟﻠﻤﻌﻠﻮﻣــــــــــــﺎت اﻟﻌﻠﻤ ﻣﺘﻮﻓــ ـــ ﺖ ـﺮة ﻣـﺠﺎﻧﺎً ﻣـــــــﻦﺧــﻼل اﻹﻧ – ﻣﺎرس أﺑﺮﻞ 2025 اﻟﻨﺴﺨﺔ اﻟﻌﺮ ﺔﻣﻦ اﻟﻤﺠﻠﺔ ASTROFILO ـاﻟ ـــﻤــﺟ ــﺘــــ ﺔواﻟ ﺮــــ ﺤﺮ . م ﻣﺎﺟﺪأﺑﻮزاﻫﺮة ــــــﻣ ـــــــ ﺮاﺟﻌ ــ ﺔاﻟ ــــ ﻤﺤ ﺘﻮى . أ ﺻﺎﻟـﺢ ﻣ ﻤﺪ اﻟﺼﻌﺐ اﻟﻤﻌﺎﻟـﺠﺔواﻟﺘﻨﺴﻴﻖ . أ ﻣﻔﺎزﻋ ﺪاﻟﻠﻄ ﻒ ـــ اﻟﻤ ﺘﺎ ﻌﺔاﻻﻟ وﻧ ﺔ ﻜـــ . م ﻧﻮافﻋ ﺪاﻷﻟﮫ ﺣﻘﻮق اﻟﻨﺸﺮ ﻤﻴـــﻊاﻟﻤــــﻮاد اﻟـــﻮاردة ﻓــــﻲﻫـــﺬﻩاﻟﻤﺠﻠــــﺔﻫــــﻲ ﻣﻠﻚ ﻟﻤﺆﺳﺴﺔ Astro PublishingdiPirlo L ﻣﺎ ﻟﻢ ُﻨﺺﻋﻠﻰﺧﻼفذﻟـﻚأو ﻣﻀـﻤﻨﺔ ﺑـﺈذن ﻣـﻦ ﻣﺆﻟﻔﻬــــــﺎ ﻌــــــﺪإﻋــــــﺎدةإﻧﺘــــــﺎجاﻟﻤــــــﻮادأ وإﻋـــــــﺎدة ـﺄيﻃﺮ ﻘـﺔدون اﻟــﺤﺼﻮل ًـﺎ إرﺳﺎﻟﻬﺎ ﻠ ًﺎأوﺟﺰ ﻋﻠﻰﻣﻮاﻓﻘﺔﺧﻄ ﺔ ﻣﺴ ﻘﺔ ﻣﻦﺻـﺎﺣﺐﺣﻘـﻮق ًـــﺎﻟﻘــــﺎﻧﻮنﺣﻘـــﻮقاﻟﻄﺒــــﻊ اﻟﻄﺒـــﻊ واﻟﻨﺸــــﺮ اﻧﺘﻬﺎ . واﻟﻨﺸـــﺮ ﻤﻜـــﻦﻋﻤـــﻞ ﻧﺴـــﺨﺔواﺣـــﺪة ﻣـــﻦاﻟﻤـــﻮاد اﻟﻤﺘﺎﺣــــــــﺔ ﻟﻼﺳــــــــﺘﺨﺪاماﻟﺸﺨﺼــــــــﻲﻓﻘــــــــﻂﻏــــــــ ﺗﻮز ــــــــﻊﻫــــــــﺬﻩ اﻟﺘﺠـــــــﺎريﻻﻳﺠــــــــﻮزﻟﻠﻤﺴـــــــﺘﺨﺪﻣ اﻟﻨﺴـﺦﻋﻠـﻰاﻵﺧـﺮ ﻦ ــﺎن ذﻟـﻚ ﻓــﻲﺷـ ﻞ ﺳـﻮاءأ إﻟﻜ وﻧــــــــﻲأمﻻﺳــــــــﻮاء ﻣﻘﺎﺑــــــــﻞرﺳـــــــــﻮمأوأي ــــﺔ ﻣﺴــــ ﻘﺔ ﻣــــﻦ ــــﺪون ﻣﻮاﻓﻘــــﺔﺧﻄ ــــﺎرآﺧــــﺮ اﻋﺘ ﺻﺎﺣﺐﺣﻖ ﻧﺴﺦاﻟﻤﻮاد . Jeddah astronomy society Jeddah city, Saudi Arabia jeddah_society@yahoo.com Email 4 10 14 18 18 22 26 32 36 40 44 48 ﺳﻤﺎء اﻟﻌﺎﻟﻢ اﻷﻛ ﻇﻠﻤﺔوﺻﻔﺎءً ﻓﻲﺧﻄﺮ " ﺎم د " ﺗﺮﺻﺪﺿﻮاﺣﻲﻣﺠﺮةﻣ ﺴﻴ ﮫ 83 رﺻﺪ ر ﺎحﺷﺪ ﺪةأﺳﺮعﻣﻦ اﻟﺼﻮتﻋﻠﻰاﻟ ﻮﻛﺐ WASP-127b در اﻟﺘ ﺎﻧﺔ ﻓﻲاﻟ ﻮن اﻟﺸﺎب أﺣﺰﻣﺔ اﻟﻤﺬﻧ ﺎتاﻟﻨ ﻤ ﺔ ﺗﻐ ﻓﻬﻤﻨﺎ ﻟﻸﻧﻈﻤﺔ اﻟ ﻮﻛﺒ ﺔ أﻛ ﺻﻮرة ﺎﻧﻮراﻣ ﺔ ﻟﻤﺠﺮة ا ﻟﻤﺮأة اﻟﻤﺴﻠﺴ ﺔﻠ أﻗﺮاصﺗﺸﻜﻴﻞ اﻟ ﻮاﻛﺐ ﻋﺎﺷﺖ ﻓ ة أﻃﻮل ﻓﻲ ﺪا ﺔ اﻟ ﻮن ﺿ ﻢ ﺛﺎﻧﻲﻋﻨﻘﻮد ﻧ ﻤ ﻓﻲﺳﺤﺎ ﺔﻣﺎﺟﻼن اﻟﻜ ى ﺳﻤﺎتﻏ ﻣﺴﺒﻮﻗﺔﻋﻠﻰﺣﺎﻓﺔ ﺛﻘﺐأﺳﻮد ﻧﺸﻂ اﻛﺘﺸﺎف أول ﻧ ﻢ ﺛﻨﺎﺋﻲ ﺎﻟﻘﺮ ﻣﻦﺳﺎﺟ ﺘﺎر ﻮسأ * و ﺐ ﻜﺸﻒﻋﻦ أﺻ ﺪاءﺿﻮء ذاتاﻟﻜﺮﺳﻲ أ اﻟﻤﻌﻘﺪ