🙌 More details on our website: www.km3net.org/welcome-orca...

Welcome, ORCA38! 🎉
After 4 days of flawless operations at sea, the ORCA detector just got a major upgrade: 5 new detection units installed in the deep sea, bringing the total to 38. A huge thank you to everyone involved, offshore crews and onshore teams, for making this great step forward possible!

Today on #worldcreativityandinnovationday2026 we celebrate our #innovative optical module, our #creative anchoring method in the deep Mediterranean Sea and the #beauty of neutrino detection with KM3NeT.

🎶Enjoy this piano recital by KM3NeT scientists.

#km3net #neutrino

Happy World Quantum Day!

Today, we dive into the fascinating world of neutrinos.
At the ORCA detector of KM3NeT, deep beneath the Mediterranean Sea, we investigate the quantum phenomenon of neutrino oscillations, where neutrinos change flavor as they travel.

#KM3NeT #neutrinos #WorldQuantumDay

https://www.km3net.org/first-call-opened-for-transnational-access-to-km3net-data/

KM3NeT proudly announces the first call for transnational access to KM3NeT data for external users!

Details at
www.km3net.org/first-call-o...

Submission deadline May 22nd, 2026, 12:00 UTC

Submit to km3net-tna@km3net.de

Support from km3net-TNA-support@km3net.de

The first KM3NeT Masterclass was a great success! Last week, high-school students across Europe stepped into the world of neutrino research, taking part in hands-on data analysis, exploring real event displays, and searching for cosmic neutrino sources. More info: www.km3net.org/great-succes...

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

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

From mechanics and electronics to software and systems engineering, KM3NeT is a powerful example of how engineering enables cutting-edge science and opens new windows on the Universe 🌌 👏 A big thank-you to all engineers pushing the boundaries of knowledge and technology!
#EngineersWeek2026

In KM3NeT, engineering turns theoretical ideas into functioning technology: deploying optical sensors deep in the sea, designing hardware that survives extreme pressure and marine conditions & building ultra-precise timing, data acquisition, and computing systems to detect cosmic neutrinos.

🎉 Happy Engineers Week 2026! 🚀

👉 www.acec.org/news/enginee...
This week celebrates the engineers who shape the future through creativity, precision, and problem-solving.

Women in Science in ##KM3NeT
Happy #InternationalDayofWomenandGirlsinScience

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

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

During the meeting, the winners of the Giorgos Androulakis Prize were announced, recognising extraordinary dedication to the KM3NeT project:
🏅 Early Career Scientists: Alfonso Garcia Soto & Lizeth Morales Gallegos
🏅 Technicians & Engineers: Irene Sgura & Alexander Enzenhöfer

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

We were also delighted to welcome two new observer institutes: Ruhr-Universität Bochum and the University of Turku.

We met last week in the historic heart of Valencia for the first Collaboration Meeting of 2026.
Researchers came together to discuss the latest results from the ARCA and ORCA detectors, plan upcoming sea campaigns, and share progress on different analyses.

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...

KM3NeT wishes you a happy New Year!!

Christmas decorations display live neutrinos in the Southern French deep sea - Nikhef It may look like Christmas decorations, but hundreds of flashing lights in the Nikhef entrance hall show live the impacts of particles in the deep sea off Toulon,...

Christmas decorations display live neutrinos in the Southern French deep sea...
www.nikhef.nl/en/news/kers...
Merry Christmas!
@km3net.bsky.social

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

Wow! 🤩

Look at this very nice brand-new representation of our KM3NeT #neutrino detector. It shows real KM3NeT #data from the #deepsea in huge physical event displays in the hallway of @nikhef.bsky.social

#science💙 #art

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

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...

VEGA's warmest and proudest congratulations to Ph.D. Juan Palacios González for his excellent doctoral thesis on multi-messenger searches for cosmic neutrino sources and time calibration with @km3net.bsky.social !

At the last edition of 100xCiencia, VEGA gave it their all to bring our ANTARES and @km3net.bsky.social detectors to the general public. We are looking forward to the next opportunity; the effort was worth it!