The image is a photograph of a blackboard with Chinese text written on it. The text reads "Development and Achievements of Astronomical Instruments" and is written in both English and Chinese. Below the text, there are six illustrations of different types of astronomical instruments, including a telescope, a satellite dish, a telescope lens, and a telescope. The illustrations are arranged in a grid-like pattern, with each instrument represented by a different color. The background of the blackboard is a dark grey color, and the text is written on a white background. The image appears to be taken in a museum or exhibition space.