Free Astronomy Magazine November-December 2025 ARABIC VERSION

A Webb observes immense stellar jet on outskirts of our galaxy byNASA/ESA/CSA RayVillard5ChristinePulliam blowtorch of seething gas- seseruptingfromavolcani- callygrowingmonsterstar hasbeencapturedbyNASA’sJames Webb Space Telescope. Stretching across 8 light-years, the length of thestellareruptionisapproximate- ly twice the distance between our Sun and the next nearest stars, the Alpha Centauri system. The size and strengthofthisparticularstellarjet, located in a nebula known as Sharp- less 2-284 (Sh2-284 for short), qual- ifiesitasrare,sayresearchers. Streaking across space at hundreds ofthousandsofmilesperhour,the outflowresemblesadouble-bladed dueling lightsaber from the Star Wars films. The central protostar, weighing as much as ten of our Suns,islocated15,000light-years NOVEMBER-DECEMBER2025 ﻣﺠﻠﺔ FreeAstronomy ﺎﻟﻌﺮ ﺔ 16 و ﺐ ﻳﺮﺻﺪ ﻧﻔﺜﺎً ﻧ ﻤ ﺎً ﻫﺎﺋﻼً ﻋﻠﻰأﻃﺮافﻣﺠﺮ ﻨﺎ : ﻘﻠﻢ راي ﻓ ﻼرد و ﺑﻮﻟ ﺎم ﻛﺮﺴﺘ و ﺎﻟﺔ ﻧﺎﺳﺎ / و ﺎﻟﺔ اﻟﻔﻀﺎء اﻷوروﺑ ﺔ / و ﺎﻟﺔ اﻟﻔ ﻀﺎء اﻟﻜﻨﺪ ﺔ اﻟـﺘﻘﻂ ﺗﻠﺴـﻜﻮب ﺟـﻴﻤ ﺲ وﻳـﺐ اﻟﻔﻀـﺎﺋﻲ اﻟﺘﺎﺑﻊ ﻟ ﻮﻛﺎﻟﺔ ﻧﺎﺳـﺎ ﺻـﻮرة ﻟﺸـﻌﻠﺔ ﻏـﺎزات ﻣﺸﺘﻌﻠﺔ ﺗﻨﺒﻌﺚ ﻣـﻦ ﻧﺠـﻢ ﻋﻤـﻼق ﺑﺮﻛـﺎﻧﻲ اﻟﻨﻤﻮ . ﻳﻤﺘﺪ ﻫﺬا اﻻﻧﻔﺠـﺎر أﻟﻨﺠﻤـﻲ ﺴـﺎﻓﺔ ﺗﺒﻠﻎ 8 ﺳﻨﻮات ﺿـﻮﺋﻴﺔ ﻣـﺎ ﻳﻘـﺎرب ﺿـﻌﻒ ا ﺴﺎ ﻓﺔ ﺑ اﻟﺸﻤﺲ وأﻗـﺮب اﻟﻨﺠـﻮم وﻫـﻮ ــــــ أﻟﻔﺎ ﻗﻨﻄـﻮروس . وﻳﺼـﻒ اﻟﺒـﺎﺣﺜﻮن ﺣﺠـﻢ وﻗﻮة ﻫﺬه اﻟﻨﻔﺎﺛﺔ اﻟﻨﺠﻤﻴﺔ اﻟﻮاﻗﻌﺔ ﰲ اﻟ ﺴﺪﻳﻢ ا ﻌﺮوف ﺑﺎﺳﻢ ﺷﺎرﺑﻠﺲ 2-284 ﺑﺄﻧﻬﺎ ﻧـﺎدرة ﻟﻠﻐﺎﻳﺔ ﺗ. ﻨﻄﻠﻖ ﻫـﺬ ه اﻟﻐـﺎزات ﻋـﱪ اﻟﻔﻀـﺎء ﺑﴪﻋﺔ ﻣﺌﺎت اﻵﻻ ف ﻣﻦ اﻷﻣﻴـﺎل ﰲ اﻟﺴـﺎﻋﺔ ﺗو ﺎً ﺸﺒﻪ ﺳﻴﻔ ﺎً ﺿﻮﺋﻴ ﻣﺰدوج اﻟﻨﺼـﻞ ﻛﻤـﺎ ﰲ ــــ أﻓﻼم ﺣﺮب ا ﻟﻨﺠﻮم . ﻳﻘﻊ اﻟﻨﺠﻢ اﻷوﱄ ا ﺮﻛﺰي اﻟﺬي ﻳﺰن ﻣﺎ ﻳﻌﺎدل ـﻋ ﴩ ﺷﻤﻮس ﺑُﻌـﺪ ﻋﲆ ﻧﺤ ـﻮ 15 أﻟ ـﻒ ﺳ ـﻨﺔ ﺿ ـﻮﺋﻴﺔ ﰲ اﻷﻃــﺮاف اﻟﺨﺎرﺟﻴﺔ ﺠﺮﺗﻨﺎ درب اﻟﺘﺒﺎﻧﺔ و ﻛﺎن اﻛﺘﺸﺎﻓ ﻪ ﺑﻮاﺳﻄﺔ ﺗﻠﺴﻜﻮب وﻳﺐ ﻣﺤﺾ ﺻﺪﻓﺔ أﺛﻨـﺎء ﻣﺴﺢ روﺗﻴﻨﻲ ﻨﻄﻘﺔ اﻟﺴﺪﻳﻢ ا ﺬﻫﻠﺔ . ﻧﻮﻓﻤﺒﺮ - ﺩﻳﺴﻤﺒﺮ 2 0 2 5