What switches people on to the night sky?
14 July - 6pm AEST
Fred Watson, Sriram Murali, Dylan O'Donnell
Join the conversation with three experts to the field of engaging people with the night sky.
Share your experiences that have garnered a growing population around the world, who are drawn to nighttime conservation.
Sriram Murali is a filmmaker and an amateur Astronomer. Being passionate about Astronomy and the night skies, he took it upon himself to raise awareness on light pollution through filmmaking. He is best known for his viral videos on light pollution, Lost in Light and award-winning feature Documentary, Saving the Dark.
While these pursuits are his hobby, he also works full time as an analyst, fighting abuse of various Google products.
Fred Watson is the Astronomer at Large, the first of its kind for the Commonwealth Government. With a successful podcast, prize-winning books, radio and television exposure, and several astronomy-themed tours under his belt, Fred will discuss ways he's seen people engage with the night sky.
Dylan O'Donnell is responsible for Australia's largest Star Party in Byron Bay, drawing this council to dark sky principles and several winning social media engagements.
Catch up Webinars
Dr Eva Schernhammer
(recorded 7 April 2021)
Melatonin is a hormone that is produced primarily by the pineal gland and secreted almost exclusively at night when it is dark.
Growing evidence also demonstrates that visible light, including artificial light, can acutely suppress melatonin production – a phenomenon often referred to as “circadian disruption” and commonly observed in shift workers. These observations led to the formulation of the ‘melatonin hypothesis’ suggesting that diminished secretion of melatonin might promote the development of cancer.
Triggered by this hypothesis, researchers accelerated their efforts to clarify whether increases in exposure to light at night could indeed increase cancer rates. Since then, epidemiologic data has continued to indicate that shift work is related to a modest increase in the risk of breast cancer and identified links to other cancers.
The growing evidence led WHO to re-classify night work as a probable carcinogen in 2019. In addition to cancer, several other chronic diseases have subsequently been linked by large prospective cohort studies to night work exposure (e.g., diabetes, cardiovascular disease, hypertension).
In this presentation, Schernhammer will review this evidence, along with a broad summary of epidemiologic studies of circadian disruption/sleep and chronic disease risk.
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THe Science of Light POllution
How is our natural environment impacted by artificial light at night both terrestrially and astronomically.
Australian Light POllution Guidelines
The Australian Department of Agriculture, Water and Environment discusses the purpose of the Light Pollution Guidelines and why they exist