The planet Mercury. Forty million miles from the Sun, following his eccentric orbit, one side of him solid with the frost of untold cycles of time, the other molten whereon metals boiled and sizzled in the incredible heat of the sun. A world utterly dead, a terror-planet, but such is the spirit of adventure in Man that even here he was exploring...

An intense human quietness was upon the laboratory. Annexed though it was to the rambling reaches of the Research Council Building, wherein experimental analyses from atomic power to weed-killer were taking place twenty-four hours a day, no external sounds penetrated the proofed, heavily-insulated walls...

Another story novelized from the pages of Astounding Stories, telling of the experiments of an alien race who have migrated to the solar system to domicile themselves on Mars. Their experiments result in the death of their leader and lead to the Martians being overwhelmed by an invasion of beings from the microcosm...and, ultimately, to the creation of life on Earth!

What happened to Walter Cardish, epicenter of a freak storm in the Lake District? The source of the strange lightning that struck him was a complete mystery, but only until its curious mental effect on Cardish became apparent.

A cosmic atrocity of the ancient past-the murder of the planet Mars by Venusian super-scientists who strip the planet of its air and water, leaving only a handful of survivors on a dying world! Martian scientist Jad Inicus embarks on am amazing scheme of revenge-by sending two young Martians, male and female, to a prehistoric earth. His cry for revenge reverberated down the corridors of centuries, and when it throbbed to awaking in Arnath Layton, his remote ancestor on Earth, the descendan...

A dangerous experiment in physics to create a sun in miniature results in a strange invasion from the fourth dimension.

Originally published in 1952, John Russell Fearn writes another classic pulp SF novel as Vargo Statten.

Claire Escott had ignored her father's warning against involvement with her fiancé Mark Rowland. However, she little realised the extent of the scientist's corroding ambition when he invents a method of matter transmission. And it was not long after their marriage that Rowland's ruthless pursuit of a scientific empire encompassed a horrifying murder. But that was only the start of things. Mark's scientific genius and obsessive ambition to go one step further eventually led to the conquest ...

Earth is enveloped in what seems at first to be to be a harmless cloud of cosmic dust. But it leaves behind a deadly disease, dooming every human being on Earth unless an antidote can be found. Medical experts strive to find this antidote, but have to report failure. At this stage a mysterious woman arrives from Jupiter with the antidote mankind so desperately needs, but she demands in return the services of Doctor Meadows as her mate; he will have to return with her to Jupiter to help reg...

Under the cover of darkness and a violent storm, electrical engineer Sidney Cassell thought he'd committed the perfect murder. But immediately after pushing his rival to his death from atop a pylon, he himself is struck by a live high-voltage cable. Cassell survives the accident, only to discover that the electrical shock has affected his body, causing him to glow with a strange inner light. Soon he becomes sucked into a vortex of murders and treachery, hunted by the police and unscrupulou...

A deadly meteor swarm approaching the Earth activates ancient Lunar technology buried beneath Earth's surface that results in the birth of Raquilo, the last Selenite, who will save some humans from the meteor storm that millions of years ago destroyed the Moon's atmosphere, oceans and inhabitants. Meanwhile, the balance of power on Earth has shifted to Vilgarth, an arms merchant who, with stolen v-ray technology and an alliance with governments in favor of his plan, wages a world war to ta...

That a planetoid of solid gold might exist in the Solar System is not beyond scientific possibility, insofar that our own Earth is basic nickel-iron, so might another world - of smaller size perhaps - be of basic god. Such a world is ZK/70, a planetoid in the region of the Asteroidal Belt.Why, when he discovered the golden planetoid, did not Professor Brailsford bring back with him enough of the precious metal or gold dust to make himself financial dictator of the Earth? Why? That ...