Light Refrain

We rarely notice light until it changes. A flicker, a glare, sudden darkness, then the world feels different. Yet light does more than allow us to see. It has shaped perception itself and, increasingly, the ways we connect with each other across distance.

In a very real way we are creatures formed by light. Long before human culture, living organisms evolved the ability to sense light and, over time, those simple sensitivities became eyes. Organs tuned to brightness, colour and movement and vision became our dominant sense.

For most of our history that light came from beyond the Earth. Sunlight revealed the day and moonlight softened the night. Fire offered only a fragile extension, drawing on energy first captured from the sun. Light was never fully ours. It arrived from elsewhere, connecting human life to forces far beyond it.

Across our region’s history light has been more than illumination. It has been a way of ordering time, reading the universe, reshaping everyday life and reaching beyond our planet.

In early medieval Northumbria, the Venerable Bede worked by candlelight with his days shaped by the slow rhythm of sunrise and sunset. Light ordered time, marked the seasons and helped frame humanity’s place within creation.

Centuries later, Thomas Wright of Durham looked to the night sky and saw more than scattered stars. He proposed that the faint band of the Milky Way was the structure of our galaxy seen from the inside. This was light returning as knowledge with a signal travelling across vast distances, carrying information from the universe to the human eye. Modern astronomical instruments extend that act of seeing, using optics and detectors to read fainter signals still from stars, galaxies and worlds beyond our own.

In Stockton, John Walker’s “friction lights” made flame newly portable and a generation later, Joseph Swan, born in Sunderland, helped make the incandescent lightbulb practical. With this innovation the modern world created a small sun that we could switch on and off at will.

This was perhaps the modern world’s most literal version of Victory Over the Sun. Yet this victory came with a subtle loss as our nights brightened the stars faded.

In County Durham today, the long heritage of light innovation continues through research into space, optics and communication. Light is no longer only something we see by, it can be shaped with extraordinary precision. Its colour, direction and structure controlled and used to carry information. In modern optics light becomes both medium and message, travelling through fibre networks, our atmosphere, between orbiting satellites and potentially across planets.

What has changed is not that light carries information - starlight, moonlight and sunlight have always brought us news of distant things. What has changed is that we have learned to answer back.

Free-space optical communication belongs to the long story of receiving light, reading it, controlling it, and now to using it as a means of connection. For most of human history light connected us to the cosmos. Now we are beginning to use it to reach back.

In this exciting new gallery, light is not an idea but an encounter. A thing that falls on surfaces, enters eyes, shifts bodies and changes spaces. The artists in Victory Over the Sun work within light’s complexity. Light is never neutral. Perhaps there is no final victory over the sun and for all our ability to control light we remain shaped by it.

James Osborn is Founding Director of Durham University Space Research Centre (SPARC)

Ged Matthews is Director of Light Years, Durham University .