Great to see #KM3NeT presence at the Rencontres de #Moriond2026 – Very High Energy Phenomena in the Universe! We presented our latest results, highlighting the growing capabilities of KM3NeT.

👏 Congrats to everyone involved in the analyses and presentations!

#Neutrinos #AstroparticlePhysics

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Hiding in the Shadows: The KM3NeT Search for the Sun and Moon It's looking a little (cosmic) rainy today! And the KM3NeT collaboration make the most of the muon downpour, testing for the presen...

#Daily #Paper #Summaries #cosmic #rays #km3net #muons #neutrinos

Origin | Interest | Match

The ultra-high-energy neutrino may have begun its journey in blazars Three years ago, in the waters of the Mediterranean Sea, the passage of an “ultra-energetic” cosmic neutrino was observed — the most energetic ever detected. The event drew internati...

The ultra-high-energy neutrino may have begun its journey in blazars

|EurekAlert! www.eurekalert.org/news-release...

#KM3NeT paper about our record-breaking #KM3230213A #neutrino has been published.

Read the press release of the JCAP journal.

New #KM3NeT paper about a test of Lorentz invariance with the ORCA6 detector.

www.km3net.org/lorentz-inva...

#neutrino #Lorentzinvariance

8 March 2026 - International Women's Day!
Meet several women in #KM3NeT
#InternationalWomensDay2026
#IWD2036

Eye of a neutrino telescope - KM3NeT Photographer Hugo Pardinilla made an award winning photo of one of the photomultipliers in the KM3NeT optical modules.

The Eye of a Neutrino Telescope

#photowalk #interactionscollaboration #KM3NeT

www.km3net.org/eye-of-a-neu...

🌊✨One month to go!
The first KM3NeT International Masterclass will take place on March 23, 2026. High-school students will explore neutrino physics and analyse real data from the deep-sea telescope.
More dates may be added (March–May 2026).
Details 👉 www.km3net.org/education/ma...
#KM3NeT #Neutrinos

新理論優雅破解宇宙最極端能量微中子起源！可能是原初黑洞爆炸 * * 2023 年，KM3NeT 實驗偵測到一個能量比大型強子對撞機（LHC）高 10 萬倍的微中子撞擊地球，但宇宙沒有任何已知來源可催生這股能量——除了已故物理學家史蒂芬·霍金 1970 年代預測的原初黑洞。 微中子（Neutrino）又稱幽靈粒子，質量非常微小，不參與強交互作用和電磁交互作用，當你伸出手掌面向太陽，每秒就有數百兆個微中子穿過你的指尖但無所覺，就算躲在地底深處，微中子依然會穿透你的身體而不互動。 在地球附近檢測到的微中子大多源自太陽，少數高能量微中子源自宇宙事件，但 2023 年，位於地中海深處的 KM3NeT 探測器偵測到一個有史以來最極端的微中子——被命名為 KM3-230213A，以約 220 PeV 能量撞擊 KM3NeT 實驗探測器，比大型強子對撞機可產生的極限能量還高 100,000 倍，也是首次證實宇宙真存在如此高能量的微中子。 對天體物理學家來說，這道「鐵證」完全無法依據現有事實解釋，因為目前還沒有已知天體物理源可以發射具特定能量的微中子，直到最近，麻薩諸塞大學阿默斯特分校物理學家團隊提出一個優雅來源：不是宇宙射線或垂死恆星，而是宇宙創世之初就誕生且存在至今的原初黑洞。 與大質量恆星塌縮形成的恆星黑洞不同，原初黑洞（PBH）質量不一定非常大，甚至可能跟原子核一樣小。 史蒂芬·霍金 1974 年提出黑洞不會永遠存在，而會因事件視界附近的量子效應慢慢「蒸散」、洩漏粒子至太空，最終完全消失，這種現象被稱為霍金輻射，霍金還提出較小黑洞輻射量通常比正常黑洞大，所以前者縮小消失速度也比後者還快。 隨著原初黑洞透過霍金輻射效應緩慢發射粒子，它們變得越來越輕、越來越熱，逐漸失控直到爆炸。 有人會問若原初黑洞爆炸是極高能宇宙微中子來源，那麼位於南極洲的冰立方天文台（IceCube）規模更大，應該早偵測到類似事件，為何從來沒有？研究人員對此意識到問題不在探測器，而在我們對原初黑洞的假設。 根據團隊提出的「暗電荷」模型，好比普通物質具電磁性，暗物質可能具獨特「暗電磁性」，受「暗對稱性」控制，隨著原初黑洞蒸發縮小，暗電荷密度急劇上升，最終黑洞達到電斥力與引力平衡的準極端（quasi-extremal）狀態。 ### 原初黑洞爆炸或可解釋一切現象 進入該狀態的原初黑洞基本上暫停蒸發，直到表面暗電場積累強烈到撕裂時空、產生暗電子對，稱為暗施溫格效應（dark Schwinger effect）。一旦該效應啟動，黑洞會迅速放電並爆炸，團隊計算出此特定類型爆炸會抑制黑洞發射 1 PeV 能量範圍的微中子（IceCube 最敏感的探測範圍），但大量釋出 100 PeV 能量範圍的微中子。 這項假設也強調原初黑洞可能構成宇宙所有暗物質，它們一生多數時間都處於休眠、準極端狀態，因此隱藏在陰影中不發出背景光，直到最後時刻才暴力輸出，包括已知粒子（如電子、夸克、希格斯玻色子）和假設粒子（如暗物質粒子）。 帶暗電荷的原初黑洞具獨特性質，行為方式不同於其他簡單原初黑洞模型，如果該團隊理論正確，那麼我們現正處於充滿微小帶電原初黑洞的宇宙中，這些黑洞偶爾像鞭炮一樣爆炸；這也是科學家驗證霍金輻射、獲取原初黑洞和標準模型之外新粒子證據的重要舞台，有助解釋暗物質之謎。 新論文發表在《物理評論快報》（Physical Review Letters ）。 * Did We Just See a Black Hole Explode? Physicists at UMass Amherst Think So—and It Could Explain (Almost) Everything * ‘Impossible’ Particle That Crashed into Earth With 100,000 Times the Energy of the LHC May Actually Be from an Exploding Black Hole * KM3NeT detects the highest energy neutrino ever observed （首圖來源：NASA） ### 延伸閱讀： * 「幽靈粒子」微中子平常不愛互動，偶爾一撞就讓原子變成其他元素 * 證實霍金預測？韋伯望遠鏡或發現「原初黑洞」首個直接證據！ * 埋於深海的巨型望遠鏡，探測到有史以來最高能量宇宙微中子 * 微型原初黑洞可能像幽靈，穿過地球岩石、建築物甚至人體 文章看完覺得有幫助，何不給我們一個鼓勵 請我們喝杯咖啡 ## 想請我們喝幾杯咖啡？ ### 每杯咖啡 65 元 x 1 x 3 x 5 x 您的咖啡贊助將是讓我們持續走下去的動力 **總金額共新臺幣 0 元** 《關於請喝咖啡的 Q & A》 ### 留給我們的話 取消 確認 從這裡可透過《Google 新聞》追蹤 TechNews * * * 科技新知，時時更新 科技新報粉絲團 加入好友 訂閱免費電子報 * * * 關鍵字: KM3-230213A , KM3NeT , 原初黑洞 , 宇宙 , 微中子 , 暗物質 , 霍金輻射

新理論優雅破解宇宙最極端能量微中子起源！可能是原初黑洞爆炸 2023 年，KM3NeT 實驗偵測到一個能量比大型強子對撞機（LHC）高 10 萬倍的微中子撞擊...

#天文 #自然科學 #航太科技 #KM3-230213A #KM3NeT #原初黑洞 #宇宙 #微中子 #暗物質 #霍金輻射

Origin | Interest | Match

Дали наистина видяхме експлозия на първична черна дупка? Данните от KM3NeT сочат към възможен източник на тъмна материя Най-големият технологичен портал в България. Новини за компютри, телефони, игри, хардуер, фото техника. Форуми, ревюта, тестове на компютри. kaldata.com

Дали наистина видяхме експлозия на първична черна дупка? Данните от KM3NeT сочат към възможен източник на тъмн...

#IT #Новини #Космос #Препоръчано #KM3NeT #астрофизика #елементарни #частици #космология #тъмна #материя

Origin | Interest | Match

Valencia hosted the KM3NeT Winter Collaboration Meeting - KM3NeT The KM3NeT Collaboration has met in Valencia, Spain, for its 2026 Winter Collaboration Meeting

A big thank you to the Valencia Experimental Group of Astroparticles (VEGA) for their outstanding organisation and warm hospitality 🙌

📍 Next stop: Bratislava, Slovakia, June 2026.
#KM3NeT #NeutrinoPhysics #AstroparticlePhysics

The KM3NeT-INFRADEV2 project comes to an end - KM3NeT At 31 December 2025 the EU funded project KM3NeT-INFRADEV2 came to an end. It marks a graceful end of the inclusion of KM3NeT in the ESFRI Roadmap.

The #EU funded #KM3NeT INFRADEV2 project came to an end on 31 December 2025.
During three years it provided strong support towards the full implementation of the KM3NeT Research Infrastructure.

Read the details in
www.km3net.org/the-km3net-i...

In case you have a Christmas tree at home, and it feels like something is missing... Or in case you'd like to have a nice #science keychain:

Why not 3D print your own #KM3NeT module and decorate it with coloured ®LEGO pins as PMTs!

www.km3net.org/pictures-and...

Don't hesitate to send us pictures

Do you see the particles flying through our detector representation @nikhef.bsky.social?!

#KM3NeT #Neutrino #Detector #Particle #Physics #Astrophysics #Outreach

From under the sea, #KM3NeT wishes you happy holidays!

Lu Lu and Tianlu Yuan from the University of Wisconsin review the state of the art in the detection of extreme high-energy neutrinos, focusing on the IceCube and KM3NeT neutrino telescopes in their latest review. #Hihep #NeutrinoTelescopes #IceCube #KM3NeT #Cherenkov
www.sciltp.com/journals/hih...

Blazars origin of KM3-230213A? - KM3NeT In a new paper we test the hypothesis that the diffuse flux of blazars can explain the single KM3-230213A neutrino event.

In a new #KM3NeT paper we have investigated whether our record neutrino event #KM3-230213A could come from a blazar.
Read our conclusion in the summary at
www.km3net.org/blazars-orig...

Listening to the deep sea: NWO Roadmap funding for the highly successful #KM3NeT telescope! Leiden physicist Dorothea Samtleben: ‘This funding will enable us to finish our detector and address long-standing, crucial, and unresolved questions in particle physics'. @leidenscience.bsky.social

Today we celebrate International Cosmic Ray Day!

#km3net #cosmicrayday

A new #KM3NeT laboratory, INTEGRA (INTEGration & Research Area), is inaugurated today in Salerno!

It is dedicated to assemble and test KM3NeT Optical Modules to speed up even more the growth of our #neutrino detector📈

Made possible by: #UniversityOfSalerno #INFN #KM3NeT4RR #PNRR #NextGenerationEU

✨Welcome KM3NeT to IPPOG! ✨
Their deep-sea neutrino detectors will boost our mission to connect particle physics with society and inspire future generations. Excited to collaborate!

#IPPOG #KM3NeT #Neutrinos
photo © KM3NeT

This review summarizes advances in extreme high-energy neutrino detection with IceCube and KM3NeT, highlighting recent PeV-scale events and future astrophysical observation prospects.
#HIHEP #neutrino #IceCube #KM3NeT #Cherenkov
www.sciltp.com/journals/hih...

NWO, de Nederlandse Organisatie voor Wetenschappelijk Onderzoek investeert zodat #KM3NeT wordt uitgebreid in de Middellandse Zee. Voor het eerst zal KM3NeT ook luisteren naar straling!

NWO sponsort nu ook mee een upgrade vd LHC naar #Fstttack, die een veel hogere luminositeit zal verwezenlijken.

💥

NWO Roadmap funding for two key Nikhef projects: KM3NeT and fast detectors - Nikhef The Netherlands Organization for Scientific Research (NWO) is funding two major Nikhef projects in the Roadmap program for large-scale research infrastructure. A total of €33.5 million will be...

Unravelling the masses of the three #neutrino types?!

With the #NWO money @nikhef.bsky.social received for #KM3NeT we can bring this dream a step closer.

In addition we received funding for a prototype of an acoustic neutrino detector extension of KM3NeT!

#staytuned

www.nikhef.nl/en/news/nwo-...

#km3net #darkmatterday

New paper about deep-sea turbulence - KM3NeT A new paper about a unique observation of turbulence in the deep Mediterranean Sea from 3D high-resolution temperature measurements.

A special new paper: not about neutrinos but about turbulence in the deep sea.
#KM3NeT is a versatile collaboration of scientists from different disciplines.

www.km3net.org/deep-sea-tur...

🛥️ Welcome ORCA33! 🌞

We had a new successful sea campaign:
1) We reconnected 4 lines previously installed and tested on node 1 to the newly deployed node 2
2) We deployed and connected 5 new lines to node 2

Big thanks to everyone involved for this great step!

#neutrino #detector #physics #km3net

Search for sterile neutrinos with ORCA6 - KM3NeT A new paper on the results of a search for sterile neutrinos with ORCA6.

About sterile neutrinos - a new KM3NeT paper.

Read a summary at
www.km3net.org/sterile-neut...

#KM3NeT #SterileNeutrinos

Ultra‑high‑energy neutrino off Sicily hints at primordial black‑hole blast

On Feb 13 2023 a neutrino of about 220 peta-electron-volts was detected off Sicily by the KM3NeT telescope, marking the most energetic cosmic neutrino recorded. Read more: getnews.me/ultra-high-energy-neutri... #neutrino #km3net

Last Friday at #EuropeanResearchersNight, we shared our #KM3NeT research with local communities. An evening of #science and #discovery, from the deep sea to the cosmos. 🌊✨

🎉Congratulations Ricardo Andrés Jaimes Campos (IFIC, CSIC–UV) for winning a poster prize at the TAE Workshop in Benasque (Spain)!

His poster on neutrino point source searches with ANTARES & KM3NeT reviews analysis methods for multimessenger neutrino astronomy 🌌🔭

#KM3NeT #ANTARES #Neutrino #TAE2025