El pequeño satélite Proba de la ESA celebra su quinto aniversario en el espacio   El futuro     The Niau atoll, located in the central South Pacific Ocean, is highlighted in this image, acquired by ESA’s Proba satellite on 6 October 2005 with its Compact High Resolution Imaging Spectrometer (CHRIS). Niau is one of nearly 80 coral reef atolls that forms the Tuamotu Archipelago in French Polynesia. Release date: 24 octubre 2006