Free Astronomy Magazine September-October 2024

47 “Our prior observationsof this system have been more indirect measure- ments of the star, which actually allowed us to see ahead of time that there was likely a giant planetin this system tugging on thestar,” saidteammem- berCarolineMorleyof the University of Texas at Austin. “That’s why our team chose this system to observe first with Webb.” “This discovery is exciting becausetheplanetis quitesimilartoJupiter—itisalittle warmerandismoremassive,butis more similar to Jupiter than any otherplanetthathasbeenimaged sofar,” addedleadauthorElisabeth Matthews of the Max Planck Insti- tute for Astronomy in Germany. Previouslyimagedexoplanetstend to be the youngest, hottest exo- planets that are still radiating much of the energy from when they first formed. As planets cool and con- tract over their lifetime, they be- come significantly fainter and therefore harder to image. “Coldplanetsareveryfaint,and most of their emission is in the mid- infrared,” explainedMatthews. “Webb is ideally suited to conduct mid-infrared imaging, which is ex- tremelyhardtodofromthe ground. We also needed good spa- tialresolutiontoseparatethe planet and the star in our images, and the large Webb mirror is ex- tremely helpful in this aspect.” EpsilonIndiAbisoneofthecoldest exoplanetstobedirectlydetected, with an estimated temperature of 35 degrees Fahrenheit (2 degrees Celsius)—colderthananyotherim- aged planet beyond our solar sys- tem,andcolderthanallbutone free- floatingbrowndwarf.The planet is only around 180 degrees Fahrenheit(100degreesCelsius) warmerthangasgiantsinoursolar system.Thisprovidesarareoppor- tunityforastronomerstostudythe atmosphericcompositionoftrue solar system analogs. “Astronomershavebeenima gining planetsinthissystemfordecades; fictionalplanetsorbitingEpsilon Indi have been the sites of Star Trek episodes, novels, and video games likeHalo,” addedMorley. “It’sexcit- ing to actually see a planet there ourselves,andbegintomeasureits properties.” EpsilonIndiAbisthetwelfthclosest exoplanet to Earth known to date and the closest planet more massive thanJupiter.Thescienceteamchose to study Eps Ind A because the sys- temshowedhintsofapossibleplan- etarybodyusingatechniquecalled radialvelocity,whichmeasuresthe back-and-forthwobblesofthehost star along our line of sight. “While we expected to image a planet in this system, because there were radial velocity indications ofits presence, the planet we found isn’t what we had predicted,” shared Matthews. “It’s about twice as massive, a little farther from its star, and has a different orbit than we expected. The cause of this dis- crepancy remains an open ques-tion. The atmosphere of the planet also appears to be a little different than the model predictions. So far we only have a few photometric measurements of the atmosphere, meaning that it is hard to draw con- clusions, but the planet is fainter than expected at shorter wave- lengths.” The team believes this may mean there is significant methane, carbon monoxide,andcarbondioxidein the planet’s atmosphere that are absorbing the shorter wavelengthsof light. It might also suggest a very cloudy atmosphere. Thedirectimagingofexoplanetsis particularly valuable for characteri- zation.Scientistscandirectlycollect light from the observed planet and compare its brightness at different wavelengths. So far, the science teamhasonlydetectedEpsilonIndi Ab at a few wavelengths, but they hope to revisit the planet with Webbtoconductbothphotometric and spectroscopic observations in the future. They also hope to detect other similar planets with Webb to find possible trends about their at- mospheres and how these objects form. NASA’s upcoming Nancy Grace Roman Space Telescope will use a coronagraph to demonstrate direct imaging technology by photograph- ingJupiter-likeworldsorbitingSun- likestars–somethingthathasnever been done before. These results will pavethewayforfuturemissionsto study worlds that are even more Earth-like.     اﻟﺼﻔﺤﺔ اﻟﺴﺎ ﻘﺔ : ﺗﻢ اﻟﺘﻘﺎط ﻫــﺬﻩ اﻟﺼــﻮرة ﻟﻠ ﻮﻛــﺐ اﻟﻨ ﻤــﻲ اﻟﻌﻤــــــــﻼق اﻟﻐـــــــــﺎزي اﻟﻤﺴـــــــــﻤﻰ Epsilon Indi Ab) ( ﺎﺳـﺘﺨﺪام ﺟﻬـــــــــــــﺎز اﻟ ﻮروﻧـــــــــــــﻮﻏﺮاف ﻓـــــــــــــﻲ ــــــــــﺎﻣ ا ﻣــــــــــ ي ) أداة اﻷﺷــــــــــﻌﺔ ﺗﺤــــــــــــﺖ اﻟــــــــــــ ـ ﻤﺮاء اﻟﻤﺘﻮﺳــــــــــــﻄﺔ ( ــــﺐ اﻟﺘﺎ ﻌــــﺔ ﻟﺘﻠﺴــــ ﻮب و . ﺸـــــ رﻣـــﺰ اﻟﻨ ﻤـــﺔ إﻟـــﻰﻣﻮﻗـــﻊ اﻟـــﻨ ﻢ ) (Epsilon Indi A ﺗـــﻢ اﻟــﺬ ﺣﺠــــــﺐﺿــــــﻮءﻩ ﺑﻮاﺳــــــﻄﺔ ﺟﻬــــــﺎز اﻟ ﻮروﻧــــﻮﻏﺮاف إﻟــــﻰ ﻣﻤــــﺎ أد ﻇﻬـــﻮراﻟــــﺪاﺋﺮة اﻟﻤﻈﻠﻤــــﺔ ﺑﺨــــﻂ أﺑــــ ﺾﻣﺘﻘﻄــــﻊ . ﻌﺘــــ اﻟ ﻮﻛـــــﺐ (Epsilon Indi Ab) ﺿــــﻤﻦ أﺑـــﺮد اﻟ ﻮاﻛـــﺐ ـــﺔ اﻟﻨ ﻤ ﺗـــﻢ اﻟـــ ﺗﺼــــــــﻮﻳﺮﻫﺎ ﺸـــــــــ ﻞ ﻣ ﺎﺷــــــــﺮ . ﺗـــــــــﻢ اﻟﻀﻮء ﻋﻨـﺪ ﺗﻌﻴ 10.6 ﻣ ﻜـﺮون ـــــــــﺎﻟﻠﻮن اﻷزرق ﺗـــــــــﻢ ﻓـــــــــﻲﺣـــــــــ اﻟﻀـﻮء ﻋﻨـﺪ ﺗﻌﻴـ 15.5 ون ﻣ ﻜـﺮ ــﺎﻟﻠﻮن اﻟ ﻘــﺎﻟﻲ . ـﺎﻣ ا ﻣــ ي ﻟـــــــــﻢ ﺗﺴــــــــــﺘﻄﻊ اﻟﺘﻘــــــــــﺎطﺻــــــــــﻮرة ﻇﻬــــــﺮ ﻣﻔﺼـــــﻠﺔ ﻟﻠ ﻮﻛــــــﺐ اﻟــــــﺬ ﻛﻨﻘﻄﺔ ﺿﻮﺋ ﺔ ﻓﻘﻂ . 47 ﻗﺎﻟﺖ ﻋﻀـﻮة اﻟﻔﺮﻳـﻖ ﻛـﺎروﻟ ﻣﻮرﱄ ﻣﻦ ﺟﺎﻣﻌـﺔ ﺗﻜﺴـﺎس ﰲ ﻣﺪﻳﻨﺔ أوﺳﺘﻦ " : ﻛﺎﻧﺖ أرﺻـ ﺎدﻧﺎ اﻟﺴﺎﺑﻘﺔ ﻟﻬﺬا اﻟﻨﻈﺎم ﻋ ﺒﺎرة ﻋـﻦ ﻗﻴﺎﺳﺎت ﻏ ﻣﺒﺎﴍة ﻟﻠﻨﺠﻢ ﺎ ﻣﻤ ﺳـﻤﺢ ﻟﻨ ـﺎ ﰲ اﻟﻮاﻗ ـﻊ أن ﻧ ـﺮى ﻣﺴﺒﻘ ﺎ أﻧﻪ ﻣﻦ ا ﺤﺘﻤـﻞ وﺟـﻮد ﻛﻮﻛﺐ ﻋﻤـﻼق ﰲ ﻫـﺬا اﻟﻨﻈـﺎم ﻳﺠﺬب اﻟﻨﺠﻢ وﻟﻬﺬا اﻟﺴﺒﺐ اﺧﺘﺎر ﻓﺮﻳﻘﻨﺎ ﻫﺬا اﻟ ﻨﻈـﺎم ﻟﻠ ﺮﺻـﺪ أوﻻً ﺑﺎﺳﺘﺨﺪام ﺗﻠﺴﻜﻮب ." وﻳﺐ أﺿــﺎﻓﺖ ا ﺆﻟﻔــﺔ اﻟﺮﺋﻴﺴــﻴﺔ إﻟﻴﺰاﺑﻴــﺚ ﻣـﺎﺛﻴﻮز ﻣـﻦ : ﻣﻌﻬــﺪ ـــــــــــــــــــــــــــ ﺑﻼﻧﻚ ﻟﻌﻠﻢ اﻟﻔﻠﻚ ﰲ أ ﺎﻧﻴﺎ :" ﻫﺬا اﻻﻛﺘﺸ ﺎف ﻣﺜ ﻷن اﻟﻜﻮﻛ ﺐ ﻳﺸﺒﻪ إﱃ ﺣﺪ ﻛﺒ ﻛﻮﻛـﺐ ا ﺸـﱰ ي ﻟﻜﻨـﻪ أﻛﺜـﺮ دﻓﺌـﺎً ﻗﻠـﻴﻼ وأﻛﺜـﺮ ﺿﺨﺎﻣﺔ ﻟﻜﻨﻪ ﻳﺸﺒﻪ ا ﺸﱰي أﻛﺜـﺮ ﻣـﻦ أي ﻛﻮﻛﺐ آﺧﺮ ﺗﻢ ﺗﺼﻮﻳﺮه ﺣﺘﻰ اﻵن ." ﺗﻤﻴﻞ اﻟﻜﻮاﻛﺐ اﻟﻨﺠﻤﻴﺔ اﻟﺘﻲ ﺗﻢ ﺗﺼـﻮﻳﺮﻫﺎ ﺎً ﺳــﺎﺑﻘ إﱃ أن ﺗﻜــﻮن أﺻــﻐﺮ اﻟﻜﻮاﻛــﺐ ـــــــــ اﻟﻨﺠﻤﻴﺔ وأﻛﺜﺮﻫﺎ ﺳـﺨﻮﻧﺔ واﻟﺘـﻲ ﻻ ﺗـﺰال ﺗﺸﻊ اﻟﻜﺜ ﻣﻦ اﻟﻄﺎﻗﺔ ﻣﻨـﺬ ﺗﺸـﻜﻠﻬﺎ ﻷول .ﻣﺮة ﻋﻨﺪﻣﺎ ﺗﱪد اﻟﻜﻮاﻛـﺐ وﺗـﻨﻜﻤﺶ ﻋـﲆ ﻣﺪار ﺣﻴﺎﺗﻬﺎ ﻓﺈﻧﻬـﺎ ﺗﺼـﺒﺢ أﻛﺜـﺮ ﺧﻔﻮﺗـﺎ ﺑﺸﻜﻞ ﻛﺒ وﺑﺎﻟﺘﺎﱄ ﻳﺼﻌﺐ ﺗﺼﻮﻳﺮﻫﺎ . أوﺿﺢ ﻣﺎﺛﻴﻮز أن " اﻟﻜﻮاﻛﺐ اﻟﺒﺎردة ﺧﺎﻓﺘـﺔ ﻟﻠﻐﺎﻳﺔ وﻣﻌﻈﻢ اﻧﺒﻌﺎﺛﻬﺎ ﻳﻜﻮن ﰲ ﻣﻨﺘﺼـﻒ اﻷﺷﻌﺔ ﺗﺤﺖ اﻟﺤﻤﺮاء ." إن ﺗﻠﺴﻜﻮب وﻳـﺐ ﻣﻨﺎﺳـﺐ ﺑﺸـﻜﻞ ﻣﺜـﺎﱄ ﻹﺟﺮاء اﻟﺘﺼﻮ ﻳﺮ ﺑﺎﻷﺷـﻌﺔ ﺗﺤـﺖ اﻟﺤﻤـﺮاء ا ﺘﻮﺳﻄﺔ وﻫﻮ أﻣﺮ ﻳﺼﻌﺐ ﻟﻠﻐﺎﻳﺔ اﻟ ﻘﻴﺎم ﺑﻪ ﻣﻦ اﻷرض ﻟﻘﺪ ﻛﻨﺎ ﺑﺤﺎﺟـﺔ أﻳﻀـ ﺎً إﱃ دﻗـﺔ ﻣﻜﺎﻧﻴﺔ ﺟﻴﺪة ﻟ ﻠﻔﺼﻞ ﺑ اﻟﻜﻮﻛﺐ واﻟـﻨﺠﻢ ﰲ ﺻﻮرﻧﺎ و ﻣﺮآة ﺗﻠﺴـﻜﻮب وﻳـﺐ اﻟﻜﺒـ ة ﻣﻔﻴﺪة ﻟﻠﻐﺎﻳﺔ ﰲ ﻫﺬا اﻟﺠﺎﻧﺐ . ﻳﻌﺪ Epsilon Indi Ab) ( أﺣﺪ أﺑﺮد اﻟﻜﻮاﻛـﺐ اﻟﻨﺠﻤﻴﺔ اﻟﺘﻲ ﺗﻢ اﻛﺘﺸﺎﻓﻬﺎ ﻣﺒـﺎﴍة ﺣﻴـﺚ ﺗﻘﺪر درﺟﺔ ﺣﺮارﺗﻪ ﺑـ 35 درﺟﺔ ﻓﻬﺮﻧﻬﺎﻳﺖ )2 درﺟﺔ ﻣﺌﻮﻳﺔ ( وﻫﻮ أﺑﺮد ﻣـﻦ أي ﻛﻮﻛـﺐ آﺧﺮ ﺗﻢ ﺗﺼﻮﻳﺮه ﺧﺎرج ﻧﻈﺎﻣﻨـﺎ اﻟﺸـ ﻤﴘـ وأﺑﺮد ﻣﻦ ﺟﻤﻴﻊ اﻟﻜﻮاﻛﺐ ﺑﺎﺳـﺘﺜﻨﺎء اﻟﻘـﺰم اﻟﺒﻨﻲ اﻟﻌﺎﺋﻢ ﺑﺸﻜﻞ ﺣﺮ . اﻟﻜﻮﻛـﺐ أﻛﺜـﺮ دﻓﺌـ ﺎً ﺑﺤـﻮاﱄ 180 درﺟـﺔ ﻓﻬﺮﻧﻬﺎﻳــﺖ ) 100 درﺟــﺔ ﻣﺌﻮﻳــﺔ ( ﻣــﻦ اﻟﻜﻮاﻛــﺐ اﻟ ﻌﻤﺎﻟﻘ ـﺔ اﻟﻐﺎز ﻳ ـﺔ ﰲ ﻧﻈﺎﻣﻨــﺎ اﻟﺸﻤﴘ . إن ﻫﺬا ﻳﻮﻓﺮ ﻓﺮﺻﺔ ﻧﺎدرة ﻟﻌﻠﻤﺎء اﻟﻔﻠ ـﻚ ﻟﺪراﺳـﺔ ﺗﻜـﻮﻳﻦ اﻟﻐ ـﻼف اﻟﺠـﻮي ﻟﻨﻈﺎﺋﺮﻫﺎ اﻟﺤﻘﻴﻘﻴﺔ ﰲ اﻟﻨﻈﺎ م اﻟﺸﻤﴘ . أﺿﺎف ﻣـﻮرﱄ ": ﻟﻘـﺪ ﻛـﺎن ﻋﻠﻤـﺎء اﻟﻔﻠـﻚ ﻳﺘﺨﻴﻠﻮن اﻟﻜﻮاﻛﺐ ﰲ ﻫﺬا اﻟﻨﻈﺎم ﻣﻨﺬ ﻋﻘﻮد إ ن اﻟﻜﻮاﻛﺐ اﻟﺨﻴﺎﻟﻴﺔ اﻟﺘﻲ ﺗﺪور ﺣﻮل اﻟﻨﺠﻢ Epsilon Indi A) ( اﻟﺬي ﻛﺎن ﻣﺤﻂ أﻧﻈـﺎر ﺣﻠﻘﺎت ورواﻳﺎت وأﻟﻌﺎب ﻓﻴﺪﻳﻮ ﺳﺘﺎر ﺗﺮﻳـﻚ ﻟﺬﻟﻚ ﻣﻦ ا ﺜ أن ﻧﺮى ﻛﻮﻛﺒﺎً ﻫﻨﺎك ﺑﺄﻧﻔﺴﻨﺎ وﻧﺒﺪأ ﰲ ﻗﻴﺎسﺧﺼﺎﺋﺼﻪ ". Epsilon Indi Ab) ( ﻫـﻮ اﻟﻜﻮﻛـﺐ اﻟﺜـﺎﻧﻲ ﻋﴩ اﻷﻗـﺮب إﱃ اﻷرضﺧـﺎرج ا ﺠﻤﻮﻋـﺔ اﻟﺸﻤﺴﻴﺔ ا ﻌﺮوف ﺣﺘﻰ اﻵن وأﻗﺮب ﻛﻮﻛﺐ أﺿﺨﻢ ﻣﻦ ﻛﻮﻛﺐ ا ﺸﱰي . اﺧﺘـﺎر اﻟﻔﺮﻳـﻖ اﻟﻌﻠﻤﻲ دراﺳـﺔ اﻟـﻨﺠﻢ ) (Epsilon Indi A ﻧﻈﺎﻣﻪ ﻷن أﻇﻬﺮ إﺷﺎرات ﻋﻦ ﺟﺴﻢ ﻛﻮﻛﺒﻲ ﻣﺤﺘﻤﻞ ﺑ ﺎﺳﺘﺨﺪام ﺗﻘﻨﻴﺔ ﺗﺴﻤﻰ اﻟـ ـ ﴪﻋﺔ اﻟﺸﻌﺎﻋﻴﺔ واﻟﺘـﻲ ﺗﻘـﻴﺲ اﻟﺘﺬﺑـﺬب ذﻫﺎﺑـ ﺎً ﺎً وإﻳﺎﺑ ﻟﻠﻨﺠﻢ ا ﻀﻴﻒ ﻋﲆ ﻃﻮل ﺧﻂ رؤﻳﺘﻨﺎ . ﻗﺎل ﻣﺎﺛﻴﻮز " : ﺑﻴﻨﻤـﺎ ﻛﻨـﺎ ﻧﺘﻮﻗـﻊ ﺗﺼـﻮﻳﺮ ﻛﻮﻛﺐ ﰲ ﻫﺬا اﻟﻨﻈﺎم ﻧﻈﺮ اً ﻟﻮﺟﻮ د ﻣﺆﴍات اﻟﴪﻋﺔ اﻟﺸﻌﺎﻋﻴﺔ ﻟﻮﺟـﻮده ﻓـﺈن اﻟﻜﻮﻛـﺐ ا ﻟﺬي وﺟﺪﻧﺎه ﻟﻴﺲ ﻫﻮ ﻣﺎ ﺗﻮﻗﻌﻨـﺎه ﻜﺘﻠﺘـﻪ ﻓ ﺗﺒﻠﻎ اﻟﻀﻌﻒ ﺗﻘﺮﻳﺒ ﺎً وأﺑﻌﺪ ﻗﻠﻴﻼً ﻋﻦ ﻧﺠﻤـﻪ وﻟﻪ ﻣﺪار ﻣﺨﺘﻠﻒ ﻋﻤﺎ ﺗﻮﻗﻌﻨﺎ وﻳﻈﻞ ﺳـﺒﺐ ﻫﺬا اﻟﺘﻨﺎﻗﺾﺳﺆاﻻ ﻣﻔﺘﻮﺣﺎ . ﻳﺒـﺪو أﻳﻀـ ﺎً أن اﻟﻐـﻼف اﻟﺠـﻮي ﻟﻠﻜﻮﻛـﺐ ﻣﺨﺘﻠﻒ ﻗﻠﻴﻼً ﻋﻦ ﺗﻮﻗﻌﺎت اﻟﻨﻤﻮذج وﺣﺘـﻰ اﻵن ﻟـﻴﺲ ﻟـﺪﻳﻨﺎ ﺳـﻮى ﻋـﺪد ﻗﻠﻴـﻞ ﻣ ـ ﻦ اﻟﻘﻴﺎﺳﺎت اﻟﻀﻮﺋﻴﺔ ﻟﻠﻐـﻼف اﻟﺠـﻮي ﻣﻤـﺎ ﻳﻌﻨــﻲ أﻧــﻪ ﻣــﻦ اﻟﺼــﻌﺐ اﺳــﺘﺨﻼص اﺳﺘﻨﺘﺎﺟﺎت وﻟﻜﻦ اﻟﻜﻮﻛﺐ أﻛﺜﺮ ﺧﻔﻮﺗ ﺎً ﻣـﻦ ا ﺘﻮﻗﻊ ﻋﻨﺪ أﻃﻮال ﻣﻮﺟﻴﺔ أﻗﴫ . ﻳﻌﺘﻘﺪ اﻟﻔﺮﻳﻖ أن ﻫﺬا ﻗﺪ ﻳﻌﻨﻲ وﺟﻮد ﻛﻤﻴﺎت ﻛﺒ ة ﻣـﻦ ا ﻴﺜـﺎن وأول أﻛﺴـﻴﺪ اﻟﻜﺮﺑـﻮن وﺛﺎﻧﻲ أﻛﺴﻴﺪ اﻟﻜﺮﺑـﻮن ﰲ اﻟﻐـﻼف اﻟﺠـﻮي ﻟﻠﻜﻮﻛـﺐ اﻟـﺬي ﻳﻤـﺘﺺ اﻷﻃـﻮال ا ﻮﺟﻴـﺔ اﻷﻗﴫ ﻟﻠﻀﻮء ﻗ. ﺪ ﻳﺸـ أﻳﻀًـﺎ إﱃ أﺟـﻮاء .اً ﻏﺎﺋﻤﺔ ﺟﺪ ﻳﻌﺪ اﻟﺘﺼﻮﻳﺮ ا ﺒﺎﴍ ﻟﻠﻜﻮاﻛﺐ اﻟﻨﺠﻤﻴـﺔ ذا ﻗﻴﻤﺔ ﺧﺎﺻﺔ ﻟﻠﺘﻮﺻـﻴﻒ وﻳﻤﻜـﻦ ﻟﻠﻌﻠﻤـﺎء ﺟﻤﻊ اﻟﻀﻮء ﻣﺒﺎﴍة ﻣﻦ اﻟﻜﻮﻛﺐ ا ﺮﺻـﻮد و اﻟﻘﻴـﺎم ﺑ ﻤﻘﺎرﻧـﺔ ﺳـﻄﻮﻋﻪ ﻋﻨـﺪ أﻃـﻮال ﻣﻮﺟﻴﺔ ﻣﺨﺘﻠﻔﺔ . ﺣﺘﻰ اﻵن اﻛﺘﺸﻒ اﻟﻔﺮﻳﻖ اﻟﻌﻠﻤﻲ اﻟﻜﻮﻛـﺐ Epsilon Indi Ab) ( ﻓﻘ ـﻂ ﻋﻨ ـﺪ أﻃـﻮال ﻣﻮﺟﻴ ـﺔ ﻗﻠﻴﻠ ـﺔ ﻟﻜـﻨﻬﻢ ﻳ ـﺄﻣﻠﻮن ﰲ رﺻـﺪ اﻟﻜﻮﻛﺐ ﻣﺮة أﺧـﺮى ﺑﺎﺳـﺘﺨﺪام ﺗﻠﺴـﻜﻮب وﻳـﺐ ﻹﺟـﺮاء ﻋﻤﻠﻴـﺎت اﻟﺮ ﺻـﺪ اﻟﻀـﻮﺋﻴﺔ واﻟﻄﻴﻔﻴ ـﺔ ﰲ ا ﺴــﺘﻘﺒﻞ وﻳ ـﺄﻣﻠﻮن أﻳﻀ ـ ﺎ إ ﻛﺘﺸﺎف ﻛﻮاﻛﺐ أﺧﺮى ﻣﺸـﺎﺑﻬﺔ ﺑﻮاﺳـﻄﺔ ﺗﻠﺴـﻜﻮب وﻳـﺐ ﻟﻠﻌﺜـﻮر ﻋـﲆ اﻻﺗﺠﺎﻫـﺎت ا ﺤﺘﻤﻠــﺔ ﺣـﻮل ﻏﻼﻓ ﻬـﺎ اﻟﺠـﻮي وﻛﻴﻔﻴـﺔ ﺗﺸﻜﻞ ﻫﺬه اﻷ ﺟﺮ ام اﻟﺴﻤﺎوﻳﺔ . ﺳﻴﺴﺘﺨﺪم ﺗﻠﺴﻜﻮب ﻧﺎﻧﴘ ﺟﺮﻳﺲ روﻣﺎن اﻟﻔﻀﺎﺋﻲ اﻟﻘﺎدم اﻟﺘﺎﺑﻊ ﻟ ﻮﻛﺎﻟﺔ ﻧﺎﺳﺎ ﺟﻬـﺎز ﻛﺮوﻧﻮﻏﺮاف ﻻﺧﺘﺒﺎر ﺗﻘﻨﻴﺔ اﻟﺘﺼﻮﻳﺮ ا ﺒﺎﴍ ﻣ ﻦ ﺧﻼل ﺗﺼﻮﻳﺮ ﻛﻮاﻛﺐ ﺔﺷﺒﻴﻬ ﺑﺎ ﺸـﱰي ﺗﺪور ﺣﻮل ﺎً ﻧﺠﻮﻣ ﺑ ﺔﺷﺒﻴﻬ ﺎﻟﺸـﻤﺲ وﻫـﻮ أﻣﺮ ﻟﻢ ﻳﺘﻢ اﻟﻘﻴﺎم ﺑﻪ ﻣﻦ ﻗﺒﻞ . ﺳﺘﻤﻬﺪ ﻫﺬه اﻟﻨﺘﺎﺋﺞ اﻟﺠﺪﻳﺪة اﻟﻄﺮﻳﻖ أﻣـﺎم ﺑﻌﺜﺎت ﻣﺴﺘﻘﺒﻠﻴﺔ ﻟﺪراﺳﺔ ﻋﻮاﻟﻢ أﻛﺜﺮ ﺷﺒﻬﺎً ﺑﺎﻟﻜﺮة اﻻرﺿﻴﺔ . - ﺳﺒﺘﻤﺒﺮ ﺃﻛﺘﻮﺑﺮ 2 0 2 4