Collection of space facts for kids, presented along the picture book lines of "A is for astronaut, B is for..." Slightly irritating that Asimov referred to astronauts as male all the way through. I mean, I know this book is old but it was still published some years after Valentina Tereshkova. On the subject of "old", however, the most interesting thing about this was the illustrations - many of which are what we would now call historical photographs.