Audiobooks online: genre "Science Fiction", page 29

Those convicted of the most heinous crimes are sentenced to the Humane Penalty: they are ejected from the airlock of a ship, to freeze in the icy chill of outer space. Death is instantaneous. But in some cases, not permanent. - Summary by Peter Eastman...

David Innes is a mining heir who finances the experimental "iron mole," an excavating vehicle designed by his elderly inventor friend Abner Perry. In a test run, they discover the vehicle cannot be turned, and it burrows 500 miles into the Earth's crust, emerging into the unknown...

An undercover Paratimer has disappeared on assignment while in an alternate time line, and it’s up to Verkan Vall of the Paratime Police to save her. To do so, he must infiltrate a universe in which assassination is an honorable profession, and reincarnation a scientific fact....

Anthem is a dystopic science fiction story taking place at some unspecified future date. Mankind has entered another dark age as a result of what Rand saw as the weaknesses of socialistic thinking and economics. Technological advancement is now carefully planned (when it i...

A doctor, an architect, an engineer, and a geologist step into a space car. In their new invention, they set off on an expediton to Mercury, planning to visit Venus on the return voyage. On Mercury they find a strange city eerily abandoned. Sculptures of giant figures alarm them....

No one would have believed, in the last years of the nineteenth century, that the Earth was being scrutinised and studied from across the gulf of space. With infinite complacency, humanity went about its little affairs, serene in its assurance of its empire over matter. It is pos...

In the summer of 1921, a disenchanted journalist escapes the rat race for a drive in the country. But Mr. Barnstaple's trip exceeds his expectations when he and other motorists are swept 3,000 years into the future. The inadvertent time travelers arrive in a world that correspond...

John Carter, an American Civil War veteran, goes prospecting in Arizona and, when set upon by Indians, is mysteriously transported to Mars, called "Barsoom" by its inhabitants. Carter finds that he has great strength on this planet, due to its lesser gravity. Carter soon falls in...

Uncontrolled, terribly violent Atomic Vortices are slowly destroying civilization on every human planet throughout the galaxy. Nothing can contain or stop them despite the lensmen's best efforts until one destroys the home and family of "Storm" Cloud, brilliant atomic physicist....

This is a collection of weird tales inspired from the natural history expeditions of the author, an independently wealthy bird collector, Olympic golfer, writer of many books on birds of the world, and, as evidenced in these pages, a fine storyteller to boot. (Summary by A. Gramo...

Triplanetary was first serialized in Amazing Stories in 1934. After the Lensman series became popular, Smith took his Triplanetary story and turned it into the first of the Lensman series, using it as a prequel to give the back story for the protaganists in the Lensmen series. He...

This is a sequel to The Skylark of Space. The novel concerns Richard Seaton and his allies who have encounters with aliens while fighting DuQuesne and the Fenachrone..(Introduction by wikipedia)...