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International Day of Light 2021

Now, more than ever, it’s critical we come together in support of science.

The International Day of Light provides a unique opportunity to celebrate the impact of optics and photonics and the wonder of scientific discovery. As we mark the occasion, it is timely for us to inform the general public and policymakers of the value of supporting evidence-based science. You can participate in this celebration by signing the pledge to trust science at trust-science.org.

Sign the Pledge

In addition to signing, we hope you will forward the pledge to your friends and families. Make sure to use #TrustScience and #LightDay2021 to join the conversation on social media and share the URL trust-science.org in any way you see fit.

Demonstrating confidence in the scientific process can lead to increased funding for science, which is essential to our future, as evident by the many benefits the science of light has brought to our lives: clean energy solutions, water purification, less-invasive healthcare options and communications infrastructure—to name a few.

Our goal is to show widespread public support of science to world leaders. I hope to see your name on the pledge by 16 May 2021 along with the Nobel Laureates, UNESCO Prize winners and leaders of major international optics and scientific bodies who have already signed on.


Connie Chang-Hasnain,
2021 OSA President