Free Astronomy Magazine November-December 2022 ARABIC VERSION

T series of images taken one second apart by the DART his video, sped up 10 times the actual speed, shows a spacecraft as it approached Didymos and the smaller Dimor- phos before colliding with the latter. The last few images are shown in real speed. [NASA/Johns Hopkins University APL] after the spacecraft had achieved “precision lock”, im- plying that the autonomous navigation system was en- gaged. [NASA/Johns Hopkins University APL, image en- hancement by the Author] T minute before impact, he DART approach, one his sequence of images was extracted from a video made by Des Makes Observatory. It shows the binary system before impact, immediately after im- pact, and when the field of debris is already moving toward outer space, where the cloud dissipates. [Des Makes Observatory, J. Berthier, F. Vachier, T. Santana-Ros, ESA NEOCC, D. Fohring, E. Petrescu, M. Micheli] ﺗﻢ اﺳﺘﺨﺮاج ﺗﺴﻠﺴﻞ اﻟﺼﻮر ﻫﺬا ﻣﻦ ﻣﻘﻄﻊ ﻓ ﺪﻳﻮ ﺗﻢ إﻧﺸﺎؤﻩ ﺑﻮاﺳﻄﺔ ﻣﺮﺻﺪ د ﺲ ﻣ ﻜﺲ اﻟﻤﻮﺟﻮد ﻓﻲ ﺟﺰ ﺮة ر ﻮﻧﻴﻮن ﺣ ﺚ ﺗﻈﻬﺮ اﻟ ﻮ ﻜﺒ د ﺪ ﻤﻮسو د ﻤﻮرﻓﻮسﻗﺒﻞ اﻻﺻﻄﺪام و ﻌﺪ اﻻﺻﻄﺪام ﻣ ﺎﺷﺮة، ﺣﺮ ﻛﺬﻟﻚ ﻛﺔ ﺳﺤﺎ ﺔ ـاﻟ ﺤﻄﺎم ﻧﺤﻮ اﻟﻔﻀﺎء اﻟ ـ ﺨﺎرﺟﻲﺣ ﺚ ﺗﺘ ﺪد . ﺗﻈﻬــﺮﻟﻘﻄــﺎت اﻟ ﺗــﻢ ﺗﺴــﺮﻌﮫ ــﺪﻳﻮ اﻟــﺬ ﻔ ﺴــﺮﻋﺔ ١٠ أﺿــﻌﺎف اﻟﺴــﺮﻋﺔ ـــﺔ اﻟﻔﻌﻠ ﺳﻠﺴـــﻠﺔ ﻣـــﻦ اﻟﺼـــﻮر اﻟﺘﻘﻄـــﺖ ـــﺔ واﺣـــﺪة ﻋـــﻦ ﻃﺮ ـــﻖ ﻔـــﺎرق ﺛﺎﻧ ــــﺔ اﻟﻤﺮﻛ اﻟﻔﻀــــﺎﺋ ﺔ ( درات) ــــﺖ ﻣــــﻦ ﻋﻨــــﺪﻣﺎ اﻗ ــــﻮﻛﺒ اﻟ ــــﺪ ﻤﻮسو د د ﻤﻮرﻓﻮس ﺘﻢ ﻋﺮض اﻟﺼﻮر اﻟﻘﻠ ﻠﺔ اﻟﻤﺎﺿ ﺔ ﺎﻟﺴﺮﻋﺔ اﻟ ـ ﺤﻘ ﻘ ﺔ اﻗـــــ اب ــــــﺔ اﻟﻔﻀــــــﺎﺋ اﻟﻤﺮﻛ ( دار)ﺔ وذﻟــــــــﻚ ﻗﺒــــــــﻞ دﻗ ﻘـــــــــﺔ واﺣــــــــﺪة ﻣـــــــــﻦ ــﺔ اﻻﺻـﻄﺪام ﻌــﺪ أن ﺣﻘﻘــﺖ اﻟﻤﺮﻛ اﻟﻔﻀــــــــــــــﺎﺋ ﺔ " ﻗﻔــــــــــــــﻞ دﻗﻴــــــــــــــﻖ " ﻣــــــــــــــﻊ اﻟ ﻮ ﻜــــﺐ د ﻤﻮرﻓــــﻮس ﻣﻤــــﺎ ﻌــــ أن ﻧﻈﺎﻣﻬــــــــــﺎ اﻟﻤﻼﺣــــــــــﻲ اﻟﻤﺴــــــــــﺘﻘﻞ ﺎن ﻌﻤﻞ . ﻔﻌﺎﻟ ﺔ