How will you celebrate light in 2026? ✨ Event registrations are open. Check out all the inspiring global stories in our latest IDL newsletter. 🔹Theme: Light for a Sustainable Future 🔗 mailchi.mp/b68ecaf4e429... 📸 @spie.org - IDL Photo Contest 2025: Francisco Gamboa, 'Light and Vibration' @unesco.org

📣 🗞 We have a theme for upcoming #lightday2026❗🗞📣 🔆 💡 Light For A Sustainable Future 💡 🔆 🗞 For more details and updates, check out our latest newsletter: mailchi.mp/10599320cc87... @unesco.org #lightday2026

🧵🚨🗞 Our July Newsletter is here🚨🗞 We are thrilled to share the (ongoing) global impact of the 8th edition of @unesco.org #lightday2025!🌍✨ 🗞 Dive into our July newsletter for event highlights, and inspiration: mailchi.mp/2d3a1c787f19...

🧵🌟 A Big Thank YOU to our incredible community! 🌟 We are truly grateful to all the passionate event organisers and participants for your tremendous effort in making the 8th edition of @unesco.org #lightday2025 a grand success!

🚨 You can STILL register your events for #lightday2025 even if they are held later this year or you missed! 💡🎉 📥 www.lightday.org/events And don’t forget to tag us – we love to share your efforts! 🤩

Lighting up a handheld He-Ne tube in the field of a plasma globe #pintofscience Thanks to Andrei Ermolaev for the photo!

Happy International Day of Light! ☀️✨ Tomorrow: Qwave — From Photons to the Stars! 🚀 Let’s explore the universe of light together! ⏳🌌 Crafted by us 🌈 @idlofficial.bsky.social @optica.org @spie.org @worldquantumday.bsky.social #IDL2025 #Qwave #lightday2025

🧵1/3 #Light is the strongest #zeitgeber for the #circadian system. Circadian #sleep -wake disruptions & chronic circadian misalignment, as often observed in #psychiatric & #neurodegenerative illness, can be treated with #lighttherapy. #LightDay2025✨

Happy International Day of Light to the global #optics and #photonics community! 🎉 📸 The 2025 #SPIE IDL photo contest is open. Submit your photos demonstrating the impact of light for a chance to win cash prizes! spie.org/community-s...#optics#photonics#SPIEidlofficial.bsky.social #lightday2025

Let's take a break! The study of light has led to promising energy sources, lifesaving medical care, high-speed internet, and so many discoveries that we can't name them all at once. Our friends over at @idlofficial.bsky.social have a lot to share from events happening all over the world.

🌟 IDL × QWave Session 1 (May 17): kicking off our photon‑to‑cosmos journey! 🚀 • Arman Avetisyan — Radiant Minds → Laser Beams • Gyulnara Khachatryan — Light Detectives: What Stars Are Made Of • Vahram Mekhitarian — Recursion: Love at First Sight @idlofficial.bsky.social @optica.org @spie.org

ANU Student Capter of Optica and SPIE IDL2025 event - student presenters and chapter office bearers @optica.org @idlofficial.bsky.social @ausphysics.bsky.social

💡 Happy International Day of Light! 💡 Let’s celebrate the power of light in Science, Technology, and Society! Explore the latest research in optics and photonics from journals: 📓 Photoniques Find out more about lastest issue bit.ly/4kfoQby 📓 JEOS:RP Sign up for Email-alert bit.ly/4khlwgR

🧵📣 Our May 1️⃣6️⃣ Newsletter is here 🎉 ‼️ And we have exciting light science impact stories from around the world to share with you! ✨ 🔎 What’s inside? Follow the thread! @unesco.org

“We should have a celebration on the International Day of Light.” “We should involve the Optica Student Chapters.” “We can ask them to post photos from their events.” “And Optica can do a 24-hour, round-the-clock social media campaign sharing these photos from chapters.” This is the result. 🧵

Celebrating #LightDay2025 with a general lecture for staff and students on The Nature of Light, and Light in Nature. Thanks to the members of the @optica.org @spie.org student chapter and all the local comms staff who helped with the organisation! @idlofficial.bsky.social

The Lim'Optix @optica.org Student Chapter from Limoges, France run an annual #LightDay2025 photo competition, and this year's winner is Tchanadéma Damoua with spiral smoke patterns created by a green laser beam used for surface engraving!

🎉 On the occasion of the 8th edition of the International Day of Light, we are honoured to receive a special message from the @unesco.org Director-General Audrey Azoulay, reminding us of the universality of #light💡 in life and society. ➡️ unesdoc.unesco.org/ark:/48223/p... #lightday2025

On the occasion of the @unesco.org International Day of Light, we created a 'light painting' using the Dwingeloo Telescope by mounting a light bulb at the focus for half an hour. #lightday2025 @idlofficial.bsky.social

Celebrating #lightday2025 here is a beautiful photo (from Dan Curticapean) of Sainte-Chapelle through a Fisheye View (Paris). The colours arise from nanoplasmonic resonances and you can read more about the physics here: doi.org/10.1063/1.35...

🎉 Hello World 🌎🌍🌏 Today marks the 8th edition of the @unesco.org #lightday2025 celebrating the profound impact of light science, innovation and technology in society. How will you celebrate the brilliance of light today? Tag us on socials. #lightday2025✨ lightday.org

🚨 EARLY GIVEAWAY ALERT 🚨 We are giving you a head start to celebrate @unesco.org #lightday2025 with our shareable banners! Download them from our website and share them on your socials tomorrow and join the celebration of light science and technology worldwide 🎊 ➡️ www.lightday.org/images

💡 May 16 #lightday2025 US 🇺🇸 Events Spotlight 🎊 🔸 Join the Optics and Photonics Society and the Montana Photonics and Quantum Alliance (MPQA) for an evening of fun, science, and community to celebrate the IDL 2025 ➡️ www.montana.edu/calendar/eve...

🧵💡 May 16 #lightday2025 Event Spotlight 🎊 🇨🇭 #switzerland 🇨🇭 🔹 "Healing is Art is Healing" @Kantonsspital Graubünden ➡️ www.ksgr.ch/kunst#heilen...

💡 May 16 #lightday2025 Event Spotlight 🎊 🇿🇦 #southafrica 🇿🇦 🔹 The BHA School of Lighting is organising the webinar “Illuminating the Future: How Light Drives Innovation and Society" on May 22. ➡️ www.bhaschooloflighting.co.za For full event details visit: www.lightday.org/events @unesco.org

💡 May 16 #lightday2025 #Romania 🇷🇴 Event Spotlight 🎊 With great enthusiasm students from “Ștefan Velovan” National Pedagogical High School in Craiova, coordinated by teacher Violeta Vrabie, will organise activities on the importance of light in our lives nwcw6y.webwave.dev

💡 May 16 #lightday2025 Republic of Korea Event Spotlight 🎊 🔸 In 2025, the Optical Society of Korea (OSK) will host the 8th International Day of Light celebration, featuring a special lecture and a mobile photography contest. ➡️ www.apls2025.org

2️⃣ Days to #lightday2025 🚀 2️⃣ 0️⃣ 0️⃣ ➕ light science, technology, art and educational events registered from over 5️⃣ 0️⃣ countries 🎉 We are excited to see the whole world join efforts in celebrating the 8th edition of the @unesco.org International Day of Light!

💡 May 16 #lightday2025 Event Spotlight 🎊 🇵🇪 #Peru🇵🇪 🔹 Horizontes Lumínicos. Jornadas de Iluminación por el Día Internacional de la Luz 2025 ➡️ www.instagram.com/aplperu For full event details visit: www.lightday.org/events @unesco.org

The video will be published on ASTRON's YouTube Shorts, Instagram, Facebook and LinkedIn channels on May 16 🤩

💡 May 16 #lightday2025 Event Spotlight 🎊 🇵🇾 #Paraguay 🇵🇾 🔹 Más allá de la luz Planetarium shows and experiment about light charasteristics ➡️ www.instagram.com/planetarioca... For full events visit: www.lightday.org/events @unesco.org

💡 May 16 #lightday2025 Event Spotlight 🎊 🇵🇦 #panama 🇵🇦 🔸 Week of Light: Society and Innovation The Universidad de Panamá is organising a series of activities in celebration of the International Day of Light. ➡️ www.fisica.up.ac.pa

🧵💡 May 16 #lightday2025 Event Spotlight 🎊 🇳🇱 #Netherlands🇳🇱 🔸 Innovation in designing light & darkness Women in Lighting- NL and Instituut Lichtontwerpen are jointly organising an evening with two lectures. ➡️ www.lichtontwerpen.nl/16-mei-innov...

💡 May 16 #lightday2025 Event Spotlight 🎊 🇳🇿 New Zealand 🇳🇿 🔸Finding the Light - MOTAT and Te Whai Ao Dodd-Walls Centre for Photonic and Quantum Technologies join forces with activities for young visitors to explore the wonder of light and colour. www.motat.nz

🧵💡 May 16 #lightday2025 Event Spotlight 🎊 🇵🇰 Pakistan 🇵🇰 🔸 Second Workshop on Optical Physics at International Islamic University (PAST EVENT) 🔸 One Day Workshop on Active Learning in Optics (PAST EVENT) 🔸 One-Day Workshop on Optics Learning in Optics (PAST EVENT)

💡 May 16 #lightday2025 Event Spotlight 🎊 🇲🇦 #Morocco🇲🇦 🔸 Let There Be Light: A Celebration for Young Explorers ➡️ iaps.info For full event details visit: www.lightday.org/events @unesco.org

💡 May 16 #lightday2025 Event Spotlight 🎊 🇲🇽 #Mexico🇲🇽 🔸 Week of Optical and Photonic Engineering and Technology ➡️ www.facebook.com/OASIS.UG.SPIE 🔸 7th edition of conference "Photonics: The Technology of Light" ➡️ www.facebook.com/FotonicaCUCE...

💡 May 16 #lightday2025 Event Spotlight 🎊 🇲🇬 #Madagascar 🇲🇬 🔹 Light, the Source of Energy for Tomorrow A science outreach event celebrating IDL through interactive stands, hands-on experiments, a conference, and film screening. ➡️ www.itatra.org/post/interna...

💡 May 16 #lightday2025 Event Spotlight 🎊 🇱🇹 #Lithuania 🇱🇹 🔹 Interactive company tours for schools ➡️ lightcon.com 🔹 Photonics Quiz on National Television ➡️ www.lrt.lt/projektai/pr... For full event details visit: www.lightday.org/events @unesco.org

💡 May 16 #lightday2025 Event Spotlight 🎊 🇰🇪 #Kenya 🇰🇪 🔸 Industry-Academia Linkage for a Brighter Future Powered by Photonics by MUKOS OPTICA-SPIE Student Chapter with IEEE Photonics MMU-K Student Branch and the National Institute for Optics and Lasers www.linkedin.com/company/muko...

🧵💡 May 16 #lightday2025 Event Spotlight 🎊 🇯🇴 #Jordan 🇯🇴 🔸 Attosecond Light Pulses for Studying Electron Dynamics 🔸 Theodore Maiman: The Physicist Who Made Laser Operable! 🔸 The Beauty of Physics: Bridging Science and Art! (PAST EVENT) science.ju.edu.jo/en/lambda/Ho...

💡 May 16 #lightday2025 Event Spotlight 🎊 🇮🇪 #ireland 🇮🇪 🔸 The Power of Light A half day workshop for 20 girl students at Tyndall National Institute organised in partnership with Teen Turn ➡️ www.ipic.ie

💡 May 16 #lightday2025 Event Spotlight 🎊 🇮🇶 #iraq 🇮🇶 🔸 The origin of the universe is darkness, so what are the sources of light? (PAST EVENT) ➡️ www.facebook.com/bdalrhmnalfl... 🔸 Importance of natural night skies (PAST EVENT) ➡️ www.facebook.com/share/p/1AdE...

🧵💡 May 16 #lightday2025 Event Spotlight 🎊 🇮🇷 #Iran 🇮🇷 🔹 Designing & Publishing a Poster by ILDA ➡️ www.ildalighting.com 🔹 Photodynamic Diagnosis ➡️ www.skyroom.online/ch/jdtums/yara 🔹 Visiting the Tehran Museum of Contemporary Art ➡️ iesi.ir

💡 May 16 #lightday2025 Event Spotlight 🎊 🇮🇩 #Indonesia 🇮🇩 🔸 The 2nd Int. Summer Course on Modern Optics and Its Applications (SCoMOA 2025) ➡️ scomoa.indonesianoptics.org 🔸 ISMOA 2025 (The 15th Int. Symp. on Modern Optics & Its Apps.) ➡️ ismoa.indonesianoptics.org

💡 May 16 #lightday2025 Event Spotlight 🎊 🇬🇹 #Guatemala🇬🇹 🔹 Seminario sobre Óptica Cuántica - an introduction to quantum optics and applications such as Quantum Computing. ➡️ ecfm.usac.edu.gt For full event details visit: www.lightday.org/events @unesco.org

💡 May 16 #lightday2025 Event Spotlight 🎊 🇬🇷 #Greece 🇬🇷 🔹 Painting with light - A discussion with Argiri Laimou's primary school children about light properties, human centric lighting, light pollution. ➡️ www.argiri-laimou.gr For full event details visit: www.lightday.org/events @unesco.org

💡 May 16 #lightday2025 Event Spotlight 🎊 🇦🇲 #armenia 🇦🇲 🔸 Optics Outreach session at Yerevan State University held on May 2 and 6th (PAST EVENT) www.linkedin.com/company/yso-... For full event details visit: www.lightday.org/events @unesco.org

💡 May 16 #lightday2025 Event Spotlight 🎊 🇧🇩 #Bangladesh 🇧🇩 🔺 আলো যেথা নাচে ➡️ www.facebook.com/events/57350...

💡 May 16 #lightday2025 Event Spotlight 🎊 🇩🇪 #Germany🇩🇪 🔸 Connecting Optics and Photonics at RUB: Optical Interconnects ➡️ moodle.ruhr-uni-bochum.de/enrol/index.... 🔸 World Interferometry Day (PAST EVENT) ➡️ www.world-interferometry-day.com