Stories by Otto Struve

Many astronomers believe that stars may be old, middle-aged or young. New studies indicate that the age of some may be less than a million years

The chemistry of the planets as a clue to the beginnings of the solar system

Little has been told of the small asteroid that three years ago crashed into a Siberian forest. A brief account of one of the most impressive natural events witnessed by man

The large numbers and various types of these companions in space are a problem to astronomy. The author's theory relates them to the evolution of both stars and planets