Free Astronomy Magazine July-August 2026 ARABIC VERSION

ful preview of the observatory’s transformativeimpactonSolarSys- tem science. Rubin Observatory is a joint pro- gram of NSF NOIRLab and DOE’s SLAC National Accelerator Labora- tory, who cooperatively operate Rubin. NOIRLab is managed by the Association of Universities for Re- search in Astronomy (AURA). The submission to MPC comprises approximatelyonemillionobserva- tions, taken over the span of a month and a half, of over 11,000 newasteroidsandmorethan80,000 already known asteroids, including some that had previously been ob- servedbutwerelater“lost”because their orbits were too uncertain to predict their future locations. You can interact with all of Rubin’s asteroid discoveries in the Rubin Or- bitviewer, which uses real data to provide an intuitive way to explore thestructureofourcosmicbackyard inthreedimensionsandinrealtime. “This first large submission after RubinFirstLookisjustthetipofthe iceberg and shows that the observa- tory is ready,” says Mario Juric, fac- ulty at the University of Washington and Rubin Solar System Lead Scien- tist. “What used to take years or decades to discover, Rubin will un- earth in months. We are beginningtodeliveronRubin’spromise tofun- damentallyreshapeourinventoryof the Solar System and open the door to discoveries we haven’t yet imag- ined.” Amongthenewlyidentifiedobjects are 33 previously unknown near- Earth objects (NEOs), which are small asteroids and comets whose closest approach to the Sun is less than1.3timesthedistancebetween Earth and the Sun. None of the newlydiscoveredNEOsposeathreat to Earth, and the largest is about 500meterswide.Objectslargerthan 140 meters are closely tracked as theycouldcausesignificant regional J J U U L L Y Y - - AUGUST T 2 2 0 0 26 ﻣﺠﻠﺔ FreeAstronomy ﺎﻟﻌﺮ ﺔ 49 ﻓُﻘـﺪت ﺳـﺎﺑﻘ ﺎً ﺑﺴـﺒﺐ ﻋـﺪم دﻗـﺔ ﺑﻴﺎ ﻧـﺎت ﻣـﺪاراﺗﻬﺎ . وﻗ ـﺎل ﻣـﺎرﻳﻮ ﻳ ـﻮرﻳﺘﺶ اﻟﻌ ـﺎﻟﻢ اﻟﺮﺋﻴﴘ ﻟﺪراﺳﺎت اﻟﻨﻈﺎم اﻟﺸﻤﴘ ﰲ ﻣﺮﺻﺪ روﺑ ﻣﻦ ﺟﺎﻣﻌﺔ واﺷﻨ :" ﻄﻦ إن ﻫﺬه اﻟﻨﺘﺎﺋﺞ ﺗﻤﺜﻞ ﻣﺠﺮد ﺑﺪاﻳﺔ ﻣﺸ إﱃ اً أن ﻣﺎ ﻛﺎن ﻳﺘﻄﻠﺐ ﺳﻨﻮات أو ﻋﻘﻮد اً ﻻﻛﺘﺸﺎﻓﻪ ﻳﻤﻜـﻦ ﻟﻠﻤﺮﺻـﺪ اﻵن اﻟﻌﺜﻮر ﻋﻠﻴﻪ ﺧﻼل أﺷﻬﺮ ﻗﻠﻴﻠﺔ ﻓﻘﻂ ﻣﻤﺎ ﻳﻤﻬﺪ ﻹﻋﺎدة رﺳﻢ ﺻﻮرة اﻟﻨﻈـﺎم اﻟـ ـ ﺸﻤﴘ ﺑﺸﻜﻞ ﻏ ﻣﺴﺒﻮق . وﻣﻦ ﺑـ اﻻﻛﺘﺸـﺎﻓﺎت اﻟﺠﺪﻳـﺪة 33 ﺎً ﺟﺮﻣـ ﺎً ﻗﺮﻳﺒ اﻷر ﻣﻦ ﻟﻢ ﺗﻜـﻦ ﻣﻌﺮ ض وﻓـﺔ ﺳـﺎﺑﻘ . ﺎً وﻫـﺬه اﻷﺟﺴـﺎم ﻋﺒـﺎرة ﻋـﻦ ﻛﻮﻳﻜﺒـﺎت أو ﻣﺬﻧﺒﺎت ﺗﻘﱰب ﻣﻦ اﻟﺸﻤﺲ إﱃ ﻣﺴﺎﻓﺔ ﺗﻘـﻞ ﻋﻦ 1.3 ﻣﺮة ﻣﻦ ﻣﺘﻮﺳﻂ ا ﺴﺎﻓﺔ ﺑ اﻷرض واﻟﺸﻤﺲ . وأﻛـﺪ اﻟﻌﻠﻤـﺎء أن أﻳـﺎً ﻣـﻦ ﻫـﺬه اﻷﺟﺴﺎم ﻻ ﻳﺸﻜﻞ ﺧﻄﺮ اً ﻋـﲆ اﻷرض وﻳﺒﻠـﻎ ﻗﻄﺮ أﻛﱪﻫﺎ ﻧﺤﻮ 500 . ﻣﱰ ﻳﺘﻮﻗﻊ اﻟﺒﺎﺣﺜﻮن أن ﻳﻜﺘﺸﻒ ا ﺮﺻﺪ ﻋﻨﺪ ﺑـﺪء ﻋﻤﻠﻴﺎﺗﻪ اﻟﻌﻠﻤﻴﺔ اﻟﻜﺎﻣﻠﺔ ﻣﺎ ﻳﻘﺎرب 90 أﻟـﻒ ﺟﺮم ﺟﺪﻳـﺪ ﻗﺮﻳـﺐ ﻣـﻦ اﻷرض اﻷﻣـﺮ اﻟـﺬي ﺳﻴﻀﺎﻋﻒ ﺗﻘﺮﻳﺒ ﺎً ﻋﺪد اﻷﺟﺮام ا ﻌﺮوﻓﺔ اﻟﺘﻲ ﻳﺘﺠﺎوز ﻗﻄﺮﻫﺎ 140 اً ﻣﱰ وﻫﻲ اﻷﺟﺮام اﻟﺘـﻲ ﺗُ ﺮاﻗﺐ ﺑﻌﻨﺎﻳﺔ ﻷﻧﻬﺎ ﻗﺪ ﺗﺴﺒﺐ أﴐار اً إﻗﻠﻴﻤﻴﺔ ﻛﺒ ة ﰲ ﺣﺎل اﺻﻄﺪاﻣﻬﺎ ﺑﺎﻷرض . وﻟﺬﻟﻚ ﻳ ﻨﺘﻈﺮ أن ﻳﺼﺒﺢ ﻣﺮﺻﺪ روﺑ أﺣﺪ أﻫﻢ أدوات اﻟﺪﻓﺎع اﻟﻜﻮﻛﺒﻲ ﰲ اﻟﻌﻘﻮد ا ﻘﺒﻠﺔ . ﻛﻤﺎ ﺗﻀﻤﻨﺖ اﻟﺒﻴﺎﻧﺎت ﻧﺤﻮ 380 ﺎً ﺟﺴﻤ اً ﻋﺎﺑﺮ ﺪار ﻧﺒﺘـﻮن وﻫـﻲ أﺟـﺮام ﺟﻠﻴﺪﻳـﺔ ﺗﻘـﻊ ﰲ ا ﻨﺎﻃﻖ اﻟﺒﻌﻴﺪة ﻣﻦ اﻟﻨﻈﺎم اﻟﺸ ـ ﻤﴘ ﺧﻠـﻒ ﻛﻮﻛﺐ ﻧﺒﺘﻮن و ﻣﻦ ﺑ ﻫـﺬه اﻷﺟـﺮام اﺛﻨـﺎن ﻳﺤﻤﻼن اﻟﺘﺴـﻤﻴﺘ ا ـﺆﻗﺘﺘ 2025 LS2 و 2025 MX 348 وﻗـﺪ ﺗﺒـ أﻧﻬﻤـﺎ ﻳـﺪوران ﰲ ﻣـﺪارات ﺷـﺪﻳﺪة اﻻﺳـﺘﻄﺎﻟﺔ ﺗﺼـﻞ ﰲ أﺑﻌـﺪ ﻧﻘﺎﻃﻬﺎ إﱃ ﻣﺴﺎﻓﺎت ﺗﻌﺎدل ﻧﺤـﻮ أ ﻟـﻒ ﻣـﺮة ا ﺴﺎﻓﺔ ﺑ اﻷرضواﻟﺸﻤﺲ ﻣﺎ ﻳﺠﻌﻠﻬﻤﺎ ﻣﻦ ﺑ أﺑﻌﺪ ﺛﻼﺛ ﻛﻮﻳﻜﺒﺎً اً ﺻﻐ ﺎً ﻣﻌﺮوﻓ ﺣﺘـﻰ اﻵن . وﻳﻌﻮد ﻫﺬا اﻹﻧﺠﺎز إﱃ اﻟﺠﻤﻊ ﺑ ﻣـﺮآة وأﻗ ﺨﻤﺔﺿ ﻮى ﻛﺎﻣ ا رﻗﻤﻴﺔ ﻓﻠﻜﻴﺔ ﰲ ا ﻟﻌﺎﻟﻢ وأﻧﻈﻤﺔ ﺑﺮﻣﺠﻴﺔ ﻣﺘﻄﻮرة ﺻﻤﻤﺖ ﺧﺼﻴﺼـ ﺎً ﻻﻛﺘﺸﺎف اﻷﺟ ﺮام اﻟﺨﺎﻓﺘﺔ و ﴎﻳﻌﺔ اﻟﺤﺮﻛـﺔ وﺳﻂ ﻣﻼﻳ ا ﺼﺎدر اﻟﻀـﻮﺋﻴﺔ ﰲ اﻟﺴـﻤﺎء . وﻳﺘﻤﺘﻊ ا ﺮﺻﺪ ﺑﺤﺴﺎﺳﻴﺔ رﺻﺪ ﺗﻔﻮق ﻣﻌﻈﻢ ﺑﺮاﻣﺞ اﻟﺒﺤﺚ اﻟ ﺤﺎﻟﻴﺔ ﻋﻦ اﻟﻜﻮﻳﻜﺒﺎت ﺑﻨﺤـﻮ ﺳ ـــﺖ ﻣــــﺮات ﻣــــﺎ ﻳﺴــــﻤﺢ ﻟــــﻪ ـــــــــــــــــــــــــــــــــــــ - ﻳﻮﻟﻴﻮ ﺃﻏﺴﻄﺲ 2 0 2 6