Latin America Professional Award 2025 Shortlist
The Atacama desert has been luring astronomers for decades. Its exceptionally clear skies have revealed profound discoveries, including potentially hazardous asteroids drifting close to Earth and evidence that the Universe’s expansion is accelerating. However, light pollution is now affecting the work of astronomers who need to see the stars. As the night brightens, and light pollution from cities rises closer to the celestial zenith, the weakening contrast is making it harder for astronomers to spot distant objects. Cities aren’t the only source of light pollution in Atacama, though. The mining industry has also become a visible contributor, with some of the larger mines generating as much light pollution as a small city. As the extraction of copper and lithium ramps up to meet soaring global demand, astronomers working in the area worry that the Chilean desert’s status as the ‘eyes of the world’ could be in jeopardy.
Cristóbal Olivares, born in Santiago, Chile in 1988, is a documentary photographer. He is the co-founder of Buen Lugar, an independent editorial initiative that publishes photography books. Cristóbal is a 2023 National Geographic Explorer. In 2019, he was named Magnum Foundation Photography and Social Justice Fellow. In 2021 his work The Eternity of Tomorrow won 2nd prize in the World Press Photo Contest and was nominated for Online Video of the Year.
Light pollution from nearby cities as seen from Cerro Tololo Observatory, Vicuña, Chile.
The Victor Blanco Telescope, also known as the 4-metre telescope, at Cerro Tololo Observatory, Vicuña, Chile.
Observatory staff clean the filters of the Victor Blanco telescope, inside a sterile room at Cerro Tololo Observatory, Vicuña, Chile. This is an essential operation for accurate observation. The filters must be completely spotless so the telescope can interpret and register the correct data and images.
The Victor Blanco Telescope at Cerro Tololo Observatory, Vicuña, Chile.
A man walks uphill in the city of Antofagasta, Chile.
The sky and stars at Cerro Tololo Observatory, Vicuña, Chile.
The Cerro Tololo Observatory in Vicuña, Chile.
The night sky, halo and stars seen outside Antofagasta, Chile.