© Thibaut VERGOZ/OSU - Réunion / CNRS Images
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Light in all its forms
Light is an invaluable resource, both for looking back into the past and for securing our future, and is celebrated on the International Day of Light on 16 May each year.
Light is in every part of our lives - sometimes too much, as our environment has never been so full of artificial light sources. In fact, light IS life, without it and without photosynthesis, our planet would have never been habitable. It will play an increasingly important role in our future, as the necessary energy transition cannot happen without developing photovoltaic energy, which captures sunlight and converts it into electricity. Therefore, light is an essential resource, which we are learning to harness more efficiently by developing new generations of solar cells and sensors that are more versatile and less expensive.
Of course, it is also an invaluable resource for trees, which have evolved to capture it more efficiently - as we explain in an episode of Zeste de Science. More surprisingly, light also allows us to travel through time! Scientists at the CNRS and elsewhere use highly sophisticated instruments to discover the secrets of objects that are often thousands of years old. This is especially true of the 6,000-year-old Mehrgarh amulet, or the Aubusson tapestries.
Light allows us to explore space, since the incredible advances in optics have enabled us to design increasingly more powerful telescopes to study our universe. On the International Day of Light, CNRS images invites you to discover light in all its forms through a selection of films and photos, that could not have been produced without it.
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