Free Astronomy Magazine November-December 2026 ARABIC VERSION

dot-likecenterthatisreminiscentof the ruby red fruit produced by the desert plant. “Everythingcreatedintheearlyuni- verse must evolve into something around us. We have had little idea ofwhatLRDsbecome,butthesere- sults finally show us how to find their progeny,” said co-author George Rieke of the University of Arizona.PreviousstudiesbyNASA’s retired Spitzer Space Telescope pro- vided the first hint of the dust-ob- scured, compact galaxy population in the lower-redshift universe that theSaguarobelongsto,pavingthe way for NASA’s Hubble and James Webb space telescopes’ high-resolu- tion analyses. “The Saguaro is important because it’s a prototypical little red dot and is one of the few we have found at lower redshift. It can be used to study the pathway of these dots throughout cosmic time,” said Fabio PacuccioftheHarvard-Smithsonian Center for Astrophysics in Cam- bridge, Massachusetts, and a co-au- thor of the study. AmongthethousandsofsourcesRi- naldi looked at across several sur- veys,theSaguarowasanexampleof the right place — with one of Webb’smicroshutterarraysperfectly framedoverthegalaxy’scoretotake spectroscopicdata—andrighttime NOVEMBER-DECEMBER2026 اﻟﻜﻮن ﻧﺤﻮ 3.3 ﻣﻠﻴﺎرات ﺳﻨﺔ ﺑﻌﺪ اﻻﻧﻔﺠـﺎر اﻟﻌﻈﻴﻢ وﺟـﻮد ﻣﺮﻛـﺰ أﺣﻤـﺮ ﺻـ ﻐ ﻳﺸـﺒﻪ اﻟﻨﻘﺎط اﻟﺤﻤﺮاء اﻟﺼـﻐ ة وﻳـﺬﻛّﺮ ﺑـﺎﻟﺜﻤﺮة اﻟﺤﻤﺮاء اﻟﻴﺎﻗﻮﺗﻴﺔ اﻟﺘ ﻲ ﻳﻨﺘﺠﻬﺎ ﻧﺒﺎت اﻟﺼﺒﺎر اﻟﺼﺤﺮاوي . ﻗﺎل ا ﺆﻟﻒ ا ﺸﺎرك ﺟﻮرج رﻳﻜﻲ ﻣﻦ ﺟﺎﻣﻌﺔ أرﻳﺰوﻧﺎ :» ﻛﻞ ﻣﺎ ﺗ ﻜﻮّن ﰲ اﻟﻜـﻮن ا ﺒﻜﺮ ﻳﺠﺐ أن ﻳﺘﻄﻮر إﱃ ﳾء ﻣﻮﺟﻮد ﺣﻮﻟﻨﺎ اﻟﻴﻮم وﻟﻢ ﻧﻜﻦ ﻧﻌﺮف ﻛﺜ اً إﱃ ﻣـﺎذا ﺗﺼـﺒﺢ اﻟﻨﻘﺎط اﻟﺤﻤﺮاء اﻟﺼﻐ ة، ﻟﻜﻦ ﻫﺬه اﻟﻨﺘـﺎﺋﺞ ﻧﻮﻓﻤﺒﺮ - ﺩﻳﺴﻤﺒﺮ 2 0 2 6 اﻟﻨﻘﺎط اﻟﺤﻤﺮاء اﻟﺼﻐ ة ﻟﻜﻦ ﻫـﺬه اﻟﻨﺘـﺎﺋﺞ ﺗﻮﺿﺢ ﻟﻨﺎ أﺧ اً ﻛﻴﻔﻴﺔ اﻟﻌﺜﻮر ﻋـﲆ ﻧﺴـﻠﻬﺎ « وﻗـﺪ ﻗـﺪﻣﺖ دراﺳـﺎت ﺳـﺎﺑﻘﺔ ﺑﺎﺳـﺘﺨﺪام ﺗﻠﺴﻜﻮب ﺳﺒﻴﺘﺰر اﻟﻔﻀﺎﺋﻲ ا ﺘﻘﺎﻋـﺪ اﻟﺘـﺎﺑﻊ ﻟﻨﺎﺳﺎ أول دﻟﻴﻞ ﻋـﲆ وﺟـﻮد ﻣﺠﻤﻮﻋـﺔ ﻣـﻦ ا ﺠﺮات ا ﺪﻣﺠﺔ ا ﺤﺠﻮﺑﺔ ﺑﺎﻟﻐﺒﺎر ﰲ اﻟﻜـﻮن ﻣﻨﺨﻔﺾ اﻻﻧﺰﻳﺎح اﻷﺣﻤﺮ اﻟﺘﻲ ﺗﻨﺘﻤـﻲ إﻟﻴﻬـﺎ " ﻣﺠﺮة " ﺳﺎﻏﻮارو وﻣﻬﺪت اﻟﻄﺮﻳﻖ ﻟﺘﺤﻠﻴﻼت ﻋﺎﻟﻴـﺔ اﻟﺪﻗـﺔ ﺑﺎﺳـﺘﺨﺪام ﺗﻠﺴـﻜﻮﺑﻲ ﻫﺎﺑـﻞ وﺟﻴﻤﺲ . وﻳﺐ وﻗـﺎل ﻓـﺎﺑﻴﻮ ﺑﺎﺗﻮﺗﴚـ ﻣـﻦ ﻋﺎﻟﻴـﺔ اﻟﺪﻗـﺔ ﺑﺎ ﺳـﺘﺨﺪام ﺗﻠﺴـﻜﻮﺑﻲ ﻫﺎﺑـﻞ وﺟﻴﻤﺲ وﻳﺐ . ﻗﺎل ﻓﺎﺑﻴﻮ ﺑﺎﺗ ﻮﺗﴚ ﻣﻦ ﻣﺮﻛﺰ ﻫﺎرﻓﺎرد ﺳﻤﻴﺜﺴﻮﻧﻴﺎن ﻟﻠﻔﻴﺰﻳـﺎء اﻟﻔﻠﻜﻴـ ﺔ ﰲ ﻛﺎﻣﱪﻳﺪج ﺑﻮﻻﻳـﺔ ﻣﺎﺳﺎﺗﺸﻮﺳـﺘﺲ وا ﺆﻟـﻒ ا ﺸﺎرك ﰲ اﻟﺪراﺳﺔ :» ﻣﺠﺮة ﺳﺎﻏﻮارو ﻣﻬﻤﺔ ﻷﻧﻬﺎ ﺗﻤﺜـﻞ ﻧ ﻤﻮذﺟـﺎً أوﻟﻴـﺎً ﻟﻨﻘﻄـﺔ ﺣﻤـﺮاء ﺻــﻐ ة وﻫــﻲ واﺣــﺪة ﻣــﻦ ﻋــﺪد ﻗﻠﻴــﻞ اﻛﺘﺸـﻔﻨﺎﻫﺎ ﻋﻨـﺪ اﻧﺰﻳـﺎح أﺣﻤـﺮ ﻣـﻨﺨﻔﺾ وﻳﻤﻜﻦ اﺳـﺘﺨﺪاﻣﻬﺎ ﻟﺪراﺳـﺔ ا ﺴـﺎر اﻟـﺬي ﺗﺘﺒ ﻌﻪ ﻫﺬه اﻟﻨﻘﺎط ﻋﱪ اﻟﺰﻣﻦ اﻟﻜﻮﻧﻲ « وﻣـﻦ ﺑ آﻻف ا ﺼﺎدر اﻟﺘﻲ درﺳﻬﺎ رﻳﻨﺎﻟـﺪي ﻋـﱪ ﻋـﺪة ﻣﺴـ ﺎﻧـﺖ ﻛ ﻮﺣﺎت " " ﺳـﺎﻏﻮارو ﻣﺜــﺎﻻً ﺎً ﻣﻨﺎﺳــﺒ إذ ﺻــﺎدف أن إﺣـ ﺪى ﻣﺼــﻔﻮﻓﺎت ا ﺼﺎرﻳﻊ اﻟﺪﻗﻴﻘﺔ ﰲ ﺗﻠﺴﻜﻮب ﻛﺎﻧـﺖ « وﻳـﺐ اﻗــ ح اﻟﻌﻠﻤــﺎء ﻣﺴــﺎراً ﻣﺤــﺘﻤﻼً ﻗـﺪ ﺗﺴــﻠﻜﮫ " اﻟﻨﻘــﺎط اﻟــ ـ ﻤﺮاء اﻟﺼــﻐ ة " ــﻮن ﻣــﻊ ﺗﻄــﻮراﻟ وذﻟــﻚ اﺳـﺘﻨﺎداً إﻟــﻰ ﺗﺤﻠـــ ﻠﻬﻢ ﻟﻠﻤﺠـــﺮة اﻟـــ ـ " ﺤﻠﺰوﻧ ﺔ WISEA J123635.56+621424.2 " أُﻃﻠـــﻖﻋﻠﻴﻬـــﺎ ﻟﻘـــﺐ اﻟـــ " " ﺳـــﺎﻏﻮارو ـــﺚ ﺣ ﻳﺮﺟﺤﻮن أن ﺗ ﻮن ﻫﺬﻩ اﻟﻨﻘﺎط ﻣﺮﺣﻠﺔً ﻣﺆﻗﺘﺔً ﻣﻦ ﺣ ﺎة اﻟﺜﻘﻮب اﻟﺴﻮ داء ﻓﺎﺋﻘﺔ اﻟﻜﺘﻠﺔ ﺷﺪ ﺪة اﻟﻨﺸﺎط . [NASA, ESA, CSA, STScI, Pierluigi Rinaldi (Steward Observatory); Image Processing: Alyssa Pagan (STScI)]