When the technology for twisting to other probability patterns was developed, a grateful Earth solved its overcrowding by sending people to live on Earths where plants and animals never got started. Each family could have its own planet, because there was an infinite number of such alt-Earths available, and the computers never assigned the same one twice. Trouble was - someone else had the same idea!

Where do jokes come from? Using a mighty computer called "Multivavac", Noel Meyerhof, a Grand Master, asks two questions of Multivac after feeding it all the jokes he knows to find where they came from. Would you believe extraterresterials?

Four co-workers raise some very interesting questions over lunch regarding Creationism and Evolution. This short Asimmov short story may leave you wondering.

Isaac Asimov has never laid claim to the title of “Mr. Science Fiction,” but he personifies science fiction in many ways. For one thing, he has grown up with the field, improving as he went; for another, he is actually a teacher of science by profession. But most significant, perhaps, is the scope of his vision, ranging (like that of science fiction itself) from the infinitely vast - as in many of his novels - to the poignantly small - as in this story… Narrated by John W. Michaels.

A research spaceship from Earth lands on Saybrook's Planet to investigate a report by an earlier colony ship. The colony ship's captain, Saybrook, had reported that the planet's abundant plant and animal life was all part of a single organism with a unified consciousness. That organism was able to induce pregnancy in all the colony ship's female animals, and all the offspring born had green patches of fur instead of eyes, a sign that they were part of the planetary organism.

In this 1972 treatise, Isaac Asimov takes the listener on an historic journey through the development of man's understanding of electricity, chemistry, and - ultimately - nuclear energy. Asimov's incomparable ability to simplify the complex is apparent as he guides you through the milestones of scientific thought that connected ideas about electricity and magnetism to the nature of matter, and led to the advances in discovery through the first half of the 20th century that resulted in the harnessing of previously unknown energy directly from the heart of the atom.

Three disparate and suspenseful looks at ourselves in three very different worlds. These engaging short stories by three of the masters of American science fiction literature, Isaac Asimov, Kurt Vonnegut, Jr., and Philip K. Dick, open windows into our psyches, our souls, and our surroundings that presage the world we find ourselves in today. Like episodes of The Twilight Zone, cinematic in their language and characters, the stories connect with our times in surprising ways.

This collection features three classic, dramatized Isaac Asimov stories: "Pebble in the Sky", "Nightfall", and "Hostess".

Here is a story that goes beyond space and time. Isaac Asimov takes on a journey that explores the ultimate fate of the universe, along with the question, what will become of the human race? So take a journey into the outer twilight of your mind. Turn off the light, sit back and relax, close your eyes, and enter the infinite universe of your imagination.

What would a child of the future envision a classroom of the 20th century to look like? This is a question that is explored in a rare piece of science fiction from master writer Isaac Asimov. Listen in to two children of the 22nd century as they explore their first-ever book. Everything they know comes on a screen and they're not sure what to do with a book. While written decades ago it's uncanny to hear the similarities to our present.