
http://www.pbs.org/wgbh/nova/sciencenow/0304/02.html
Have you ever heard about space storms?
Its so strange but in fact, not only our earth has storms but also in the universe. They are storms that its very difficult to explain, identify and predict.
Have you ever seen stuff like green streams that are dancing in the sky?
That is a part of results caused by space storms. Many people usually call them aurora orealis because of their splendid color.
Now aday, scientists figure out that there are many space storms in the universe that they can't still identify.Why they need to indentify them? Because they are so dangerous and can cause damages to our planets and saterllites, so Nasa and saterllite companies really need infornations about them. They don't come from our earth but from the sun. The sun is a planet whose surface is like boiled water and emits most of calories so far. When these calories are emited into the universe, they cause space storms that seriously affect other planets including our earth. Planets are influented by those calories, when they get oxygen, they become to have color as we have color stars today. Scientist call these phenomenon sub storms and those lights Nothern lights. Of couse, they just happen out space of the universe. Vassilis Angelopouslos, team leader of Nasa's Themis are researching these space storms. They use satellites to observe sub storm and identify where they are in the universe. They try to discover the truth about the sub storms. Therefore, they prepare a rocket that contain five satellite to send them into the universe. They have to be very careful to put them in the right place, right time to catch storms' actions. To know when storms happen, they have weather observations that work 24/7. By machines, they can see pictures, lever and ways of storms. With statistics that they collect, they try to analyse storms to predict when they happen. These are often difficult to forecast because it takes them two day to download necessary informations from satellite to the earth, and those informations also take a long to analyse. Indeed, scientists are still trying to solve mysteries about space storms and qualify their damage.









