A visitor looks through a telescope at a technology exhibition in Politehnica University of Bucharest, Romania, June 11, 2023. (Photo by Cristian Cristel/Xinhua)
Children interact with a robotic dog at a technology exhibition in Politehnica University of Bucharest, Romania, June 11, 2023. (Photo by Cristian Cristel/Xinhua)
A child decorates painted spheres representing planets of the solar system at a technology exhibition in Politehnica University of Bucharest, Romania, June 11, 2023. (Photo by Cristian Cristel/Xinhua)