Vlog: How does a weather balloon work?
02:18

China is going to launch a lunar mission at the Wenchang Spacecraft Launch Site at the end of November, which will mark the country's first lunar sample return mission. Weather can make or break a rocket launch mission. Despite the wide use of satellite in detecting weather conditions, weather balloons are frequently utilized to detect the weather in some particular areas. And thousands of these balloons are launched across the world on a daily basis. Xia Bing from the Meteorological Department of the Wenchang Spacecraft Launch Site said flying weather balloons is a routine in his job no matter what the weather is like.