دَلِيلٌ قَوِيٌّ عَلَى ثُقْبٍ أَسْوَدَ تَائِهٍ عِنْدَ طَرَفِ مَجَرَّةٍ
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أَعْلَنَ فَرِيقٌ دَوْلِيٌّ مِنْ عُلَمَاءِ الْفَلَكِ، فِي ٢٧ يُولْيُو ٢٠٢٦، دَلِيلًا قَوِيًّا عَلَى وُجُودِ ثُقْبٍ أَسْوَدَ ضَخْمٍ بَعِيدٍ عَنْ مَرْكَزِ مَجَرَّتِهِ. وَيَصِفُ الْبَاحِثُونَ هٰذَا الثُّقْبَ بِأَنَّهُ «تَائِهٌ» بِسَبَبِ مَوْقِعِهِ غَيْرِ الْعَادِيِّ.
يَقَعُ الثُّقْبُ عَلَى بُعْدِ أَكْثَرَ مِنْ ٣٠ أَلْفَ سَنَةٍ ضَوْئِيَّةٍ مِنْ مَرْكَزِ الْمَجَرَّةِ. وَتَبْعُدُ هٰذِهِ الْمَجَرَّةُ نَحْوَ ٧٥٠ مِلْيُونَ سَنَةٍ ضَوْئِيَّةٍ عَنِ الْأَرْضِ. وَعَادَةً مَا تَكُونُ الثُّقُوبُ السَّوْدَاءُ الضَّخْمَةُ فِي مَرَاكِزِ الْمَجَرَّاتِ.
ظَهَرَ أَوَّلُ دَلِيلٍ عَلَيْهِ فِي نُوفَمْبَرَ ٢٠٢٥، عِنْدَمَا سَجَّلَ مَسْحٌ فَلَكِيٌّ وَمِيضًا غَيْرَ عَادِيٍّ. وَبَيَّنَتْ مُشَاهَدَاتٌ مِنْ عِدَّةِ تِلِسْكُوبَاتٍ، مِنْهَا مَرْصَدُ «سْوِيفْتَ» الْفَضَائِيُّ، أَنَّ جَاذِبِيَّةَ الثُّقْبِ مَزَّقَتْ نَجْمًا مَرَّ قَرِيبًا مِنْهُ.
تُقَدَّرُ كُتْلَةُ الثُّقْبِ بِنَحْوِ مِلْيُونِ ضِعْفِ كُتْلَةِ الشَّمْسِ. وَرُبَّمَا دُفِعَ بَعِيدًا بَعْدَ اِنْدِمَاجِ عِدَّةِ مَجَرَّاتٍ، أَوْ بَقِيَ فِي مَرْكَزِ مَجَرَّةٍ صَغِيرَةٍ فَقَدَتْ مُعْظَمَ نُجُومِهَا. وَسَتُسَاعِدُ هٰذِهِ الطَّرِيقَةُ الْعُلَمَاءَ عَلَى الْبَحْثِ عَنْ ثُقُوبٍ مُشَابِهَةٍ.
Show English Translation
Strong Evidence of a Wandering Black Hole at a Galaxy’s Edge
On July 27, 2026, an international team of astronomers announced strong evidence of a massive black hole far from the center of its galaxy. The researchers describe the black hole as “wandering” because of its unusual location.
The black hole is more than 30,000 light-years from the galaxy’s center. This galaxy is about 750 million light-years from Earth. Massive black holes are usually located at the centers of galaxies.
The first evidence of it appeared in November 2025, when an astronomical survey recorded an unusual flash. Observations from several telescopes, including the Swift space observatory, showed that the black hole’s gravity tore apart a star that passed close to it.
The black hole’s mass is estimated at around one million times the Sun’s mass. It may have been pushed away after several galaxies merged, or it may remain at the center of a small galaxy that lost most of its stars. This method will help scientists search for similar black holes.
Key Vocabulary
| Arabic | Part of speech | English |
|---|---|---|
| عَالِمُ فَلَكٍ | noun | astronomer |
| دَلِيلٌ | noun | evidence |
| ثُقْبٌ أَسْوَدُ | noun | black hole |
| تَائِهٌ | adjective | wandering |
| مَجَرَّةٌ | noun | galaxy |
| سَنَةٌ ضَوْئِيَّةٌ | noun | light-year |
| مَسْحٌ فَلَكِيٌّ | noun | astronomical survey |
| وَمِيضٌ | noun | flash |
| جَاذِبِيَّةٌ | noun | gravity |
| كُتْلَةٌ | noun | mass |
| اِنْدِمَاجٌ | noun | merger |
Sources
- NASA Science: NASA’s Swift Sees ‘Wandering’ Mega Black Hole Shredding Star
- University of Maryland Department of Astronomy: First-Ever ‘Wandering’ Black Hole Spotted at the Edge of a Galaxy
- The Astrophysical Journal Letters via arXiv: TDE 2025abcr: A Tidal Disruption Event in the Outskirts of a Massive Galaxy
This learner article is an original summary based on the sources above. The featured image is an AI-generated editorial illustration.