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CLEO to host International Day of Light Speaker: Nobel Laureate John C. Mather

To celebrate the official proclamation of the International Day of Light, Nobel Laureate John C. Mather of NASA's Goddard Space Flight Center, USA, will provide a plenary presentation, entitled, “Exploring the Universe at the Speed of Light,” at CLEO on 16 May 2018 at the San Jose Convention Center, California, USA.


Astronomers travel the universe with imagination and observation, and most of the information arrives as light waves, showing the distant universe as it was when the light was sent out.  We can now see at wavelengths ranging from over 10 meters to less than a picometer, limited only by our ingenuity and the opacity of our environment. We are beginning to learn the story of our own origins, from the expanding early universe, to the formation of galaxies, stars, and black holes, to the stellar nuclear processes producing the heavy elements of life, to the formation of planets. That history is full of catastrophic events, apparently necessary for our own existence. I will show some of the future discoveries we hope to see through NASA’s James Webb Space Telescope (JWST), discuss the expanding views of the universe, and outline the technology that will lead us to deeper understanding.

About CLEO

With a distinguished history as the industry's leading event on laser science, the Conference on Lasers and Electro-Optics (CLEO) is the premier international forum for scientific and technical optics, uniting the fields of lasers and opto-electronics by bringing together all aspects of laser technology, from basic research to industry applications. For more information, visit the event website at

About The Optical Society

Founded in 1916, The Optical Society (OSA) is the leading professional organization for scientists, engineers, students and business leaders who fuel discoveries, shape real-life applications and accelerate achievements in the science of light. Through world-renowned publications, meetings and membership initiatives, OSA provides quality research, inspired interactions and dedicated resources for its extensive global network of optics and photonics experts. For more information, visit

About The IEEE Photonics Society

The IEEE is the world’s largest technical professional organization dedicated to advancing technology for the benefit of humanity. Within the IEEE, the IEEE Photonics Society is the professional home for a global network of scientists and engineers who represent the laser, optoelectronics and photonics community. IEEE Photonics provides its members with professional growth opportunities, publishes highly cited journals, sponsors conferences and supports local chapter and student activities more than 160 countries around the world. For more information visit

About The American Physical Society

The American Physical Society (APS) is a non-profit membership organization working to advance and diffuse the knowledge of physics through its outstanding research journals, scientific meetings, and education, outreach, advocacy, and international activities. APS represents over 53,000 members, including physicists in academia, national laboratories, and industry in the United States and throughout the world. The Society’s Division of Laser Science promotes laser science interests within the APS. For more information, visit


John Taylor
Director, Executive Office
The Optical Society


Jorge Rivero González

International Day of Light Secretariat & Press Officer

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