The sun will experience some cycles, in which the sun will have more or less some activity. At present, NASA has confirmed that the 25th solar cycle has begun. Experts from NASA and the National Oceanic and Atmospheric Administration (NOAA) discussed the analysis and prediction of the new solar cycle at a media event on Tuesday. < / P > < p > the information they share during the event includes how the upcoming active period of space climate will affect life on earth, technology and astronauts in space. NASA said the solar minimum occurred in December 2019, marking the beginning of a new solar cycle. Because of the great changes in the sun, it may take months before an event is announced. Sunspots are used to track the progress of the solar cycle, and NASA points out that black spots on the sun are related to solar activity. Solar activity will never stop. Space climate prediction, monitoring and space weather forecast provided by NOAA and NASA are of great importance to satellites, astronauts on the international space station, and support for the & quot; Artemis & quot; program and astronauts. < / P > < p > providing environmental services for space is the first key step to understand and reduce astronauts’ exposure to space radiation. NASA is conducting two scientific surveys focusing on space weather and monitoring the radiation environment in lunar orbit. Scientists are also working on prediction models to one day predict space weather in the same way that meteorologists predict the weather on earth. < / P > < p > with the coming of the 25th solar cycle, the minimum solar activity has passed, and the solar activity will accelerate to the next predicted maximum in July 2025. The 25th solar cycle is expected to be as strong as the previous one, which was lower than the previous average, but not without risks. Spontaneous combustion at a Guangzhou Motor vehicle intersection and other traffic lights in Shenzhen