Signing of the MoU (IMAGE) Instituto de Astrofísica de Canarias (IAC) Caption Rafael Rebolo, director of the Instituto de Astrofísica de Canarias (IAC), and Gang Zhao, general deputy director of the NAOC, after the signing of the memorandum. In the center, Romano Corradi, deputy director of the Gran Telescopio CANARIAS (GTC), and members of the Chinese delegation at NAOC. Credit NAOC. Usage Restrictions Documents and materials on the IAC website are copyright of the Instituto de Astrofísica de Canarias. Use for commercial and publicity purposes is not authorised. Text and images may only be reproduced with the prior express permission of the Science Communication and Education Unit of the Instituto de Astrofísica de Canarias. To request permission: Include the address of the image (or information about it) in a request addressed to the Head of the Communication and Scientific Culture Unit (secUC3@iac.es) explaining what the image will be used for. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.