We lose the majority of the daylight available when we’re inside and a few metres away from a window.
Articles on Light
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The Hanukkah story centers on rekindling the eternal light in the Temple, a symbol of God’s presence. Similarly, the Ner Tamid above the ark in synagogues is never supposed to go out.
PFAS are made up of a chain of incredibly strong carbon-fluorine bonds, which make them difficult to break down.
Many peoples throughout history used the warmth of the Sun to heal. Others used lamps or light split into different colours, which we still use today.
Your GP shines a light in your eyes, orders a blood test and requests some medical imaging. All rely on light to help diagnose disease.
Here are just some of the ways light is important for our wellbeing and mental health.
We have trillions of body clocks – a central one in the brain and others in each cell of our body. Here’s how they work with light to control our health.
Light helps explains the evolution of our skin colour, why some of us have curly hair, and the size of our eyes. And light still shapes us today.
Some materials react and generate potentially helpful particles when exposed to light. Analytical AI can help scientists sort through materials to find ones with this property.
How much do we really need to be worried about the effects of blue light on our skin?
In winter 2023-24, the Great Lakes’ ice cover was near record lows, peaking at just 16%. Researchers explain how diminishing ice could have consequences for fisheries, and how species are evolving.
Phone cameras are an example of what’s called computational photography. Digital tools built into these cameras can enhance your images in real time.
An exciting new experiment is being set up at Yale university in the US.
Observations during historical solar eclipses confirmed Einstein’s theory of gravity, and led to the predictions of black holes.
2024 is a leap year, when the shortest month mops up a bit of leftover time. But the extra day also tells us about space – and our place in it.
A new study shows how artificial light at night scrambles insects’ normal flight patterns, pulling them off course into orbit around the light.
Leonard Cohen, a man about whom surely no Hallmark festive movie will ever be made, dared the Divine to answer humanity’s sorrows.
SAD is a debilitating condition affecting many people, but there is light at the end of the tunnel.
Scientists are trying to figure out if time travel is even theoretically possible. If it is, it looks like it would take a whole lot more knowledge and resources than humans have now to do it.
An astronomer explains why space looks so dark despite containing 200 billion trillion stars.
Top contributors
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Professor, Australian National University
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Professor, School of Medicine, University of Connecticut
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Assistant Professor of Astronomy and Astrophysics, University of Maryland, Baltimore County
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Professor of Psychology, University of Essex
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Professor, Philosophy of Science, The University of Melbourne
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Ph.D. Candidate in Chemistry, University of Colorado Boulder
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Chercheur au Laboratoire de Physique des Lasers, Atomes et Molécules, Université de Lille
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Professeur au Laboratoire de Physique des Lasers Atomes et Molécules (PHLAM), CNRS UMR8523, IRCICA, Université de Lille
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Associate Professor in Biophysics, University of Pretoria
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Professeur Titulaire. École d'optométrie. Expertise en santé oculaire et usage des lentilles cornéennes spécialisées, Université de Montréal
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University Distinguished Professor of Astronomy, University of Arizona
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Professor of Biological Sciences, Florida International University
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Professor of Optics, University of Ferrara
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Professor, University of the Witwatersrand
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Senior Lecturer in Parasite Epidemiology, School of Natural and Environmental Sciences, Newcastle University