This Artemis moon mission is a truly unifying international project, one of the few we have left | Christopher Riley

For the first time in over 50 years, astronauts will see Earth from distant space. Let’s hope the images they send back of our fragile home bring some much-needed unity

More than 50 years ago, the Apollo astronauts’ photographs of Earth seen from the moon had a jolting effect on a society distracted by division and conflict. Then, as now, they came in “an hour of change and challenge, in a decade of hope and fear, in an age of both knowledge and ignorance”, as President John F Kennedy had put it. But what he hadn’t predicted was that on the way to the moon, we would discover the Earth.

Here was our home planet, suddenly seen as a finite ball of rock, shrouded in an apple peel-thin layer of life-sustaining air. This view jarred with people’s everyday experience of living on the surface of an apparently infinite world of limitless resources. The creation of a special Earth Day soon followed, along with the founding of the campaigning environmental charity Friends of the Earth and the passing of a slew of environmental protection laws.