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Physics and Astronomy

Knowledge Exchange (KE) and impact in Physics & Astronomy

 Knowledge Exchange
HKU Astronomical Observatory Open House with students



The Division has a wide range of KE activities including Public Lectures, School Talks, School Visits, Astronomy Labs., Enrichment Courses/Workshops, Media Corner, Webpage for Public etc.



Details of these activities can be found in



The Division of Physics and Astronomy actively engages with the general public through citizen science, liaising with government bodies, and fostering industrial partners in its efforts to translate basic and applied research into meaningful economic and societal impact.


Timelapse photo of Hong Kong

One area of the Unit’s diverse research activities relates to light pollution in Hong Kong.

This has led to several public consultations and the issuance of a Charter of External Lighting by the Environment Bureau of Hong Kong, SAR. Through contract research and specialist services to key industries, the Unit is able to support Hong Kong and Chinese manufacturers to develop and manufacture quality quantum-dot LED backlight devices, battery materials, and semiconductors.


An HKU start-up company (PhysonTech) emerged from the research on device simulation during the census period.  More impact cases can be found in the following link.