Sacyr's Blog

For years, archaeologists searched for lost cities through ground excavations. Sarah Parcak decided to look for them from space. Using satellite imagery, this American researcher can detect subtle changes in the landscape that reveal archaeological remains hidden beneath the surface.

Some structures begin where the ground ends. Houses that don’t rest on the earth, temples that seem suspended in mid-air, and buildings that cling to the rock as if they were part of it. In these places, architecture stops expanding and learns to support itself over empty space.

From Namibia to Singapore, recycled water has become a vital resource. Places such as Windhoek, Orange County, and Singapore show how technology and innovation make it possible to transform wastewater into safe drinking water.

Barbara Jatta, an Italian art historian, is the first woman to lead the Vatican Museums in more than five centuries. Her appointment by Pope Francis at the end of 2016 marked a historic milestone for the institution.