- 注册
- 2002-01-16
- 消息
- 28,452
- 荣誉分数
- 5,458
- 声望点数
- 393
Forecasters with the U.S. National Oceanic and Atmospheric Administration say there is a 90-per-cent chance of geomagnetic storms Thursday when the “coronal mass ejection” strikes the Earth’s atmosphere at a speed of 700 kilometres per second.