单选题

　　1.【概括大意】Take the case of Eta Carinae,one of the most explosive stars in the universe. This star produces ultraviolet laser rays（紫外线） and it will destroy itself in a few million years'time. It is five times brighter than the sun and when it explodes it is going to be a sight worth waiting for!

　　The main idea of this paragraph is__________.

　　A.Power of the telescope

　　B.Details of Eta Carinae

　　C.Invention of a time machine

　　D.Biggest telescope