The future of an ancient city

Petra, a 2,500-year-old city in Jordan, is one of the world’s most revered cultural sites. But time and tourism are taking their toll on its monuments, carved into sandstone cliffs.

"I could not look at such beauty without saying: Maybe I can help. Maybe not a lot, but perhaps a little, I can help.

Chemistry professor Talal Akasheh, who has devoted 26 years to documenting Petra scientifically, is set to complete a knowledge system that will underpin the city’s future conservation.

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