'Curiosities of the Sky' is a fascinating book written by Garrett P. Serviss, an American astronomer, published first time in 1909. His writings popularize astronomy and generates curiosity among the people to know the unrevealed facts of science specially universe. His writing is unbelievable, 100 years earlier he has given such a firm and factual information about the stars to us. When he has written all these description only telescope was the means through which all universe can be observed. In a very interesting writing style he amused his readers and covered topics like - strange surroundings of sun, unfixedness of the fixed stars, comets and meteors, transformation of comets and their tails, northern lights, black holes, solar storm, novae and many more. He has given amazing facts about Mars still these facts are centre of attraction, searching the possibility of life there.