[originaltext] Scientists who study the sun watch for sunspots-violent storm

Scientists who study the sun watch for sunspots-violent storms that can affect communications, navigation systems and even electric power stations on Earth. Sunspots are a product of huge electromagnetic storms on the sun. Scientists on Earth are able to observe sunspots eight minutes after they happen. That is how long it takes for the sun’s light to reach us. The first electrically charged particles from a sunspot enter Earth’s atmosphere about 20 to 30 minutes after the storm happens. These particles can harm human beings. So before they arrive, astronauts on the International Space Station move into special areas designed to protect them from their effects. Scientists are also trying to understand why the number of sunspots rises and falls at almost regular intervals every 11 years. In other words, scientists can almost predict the amount of solar activity.
Questions 1 and 2 are based on the news report you have just heard.
1. What is the news report mainly about?
2. When do the first electrically charged particles reach Earth?