Space Tug

Joe Kenmore heard the airlock close with a sickening wheeze and then a clank. In desperation he turned toward Haney. “My God, we’ve been locked out!”

Through the transparent domes of their space helmets, Joe could see a look of horror and disbelief pass across Haney’s face. But it was true! Joe and his crew were locked out of the Space Platform.

Four thousand miles below circled the Earth. Under Joe’s feet rested the solid steel hull of his home in outer space. But without tools there was no hope of getting back inside. Joe looked at his oxygen meter. It registered thirty minutes to live.

This World Is Taboo
Calhoun is an Interstellar Medical Serviceman, and he's needed on Dara. Trouble is: Dara is forbidden. Taboo. And breaking quarantine will make Calhoun a presumed plague-carrier and subject to being shot on sight by anyone from Weald. But hey! If he did the smart thing, we wouldn't have a story!
But why are men from Dara shooting at him?
Red Dust
You who have read "The Mad Planet" by Murray Leinster, will welcome the sequel to that story. The world, in a far distant future, is peopled with huge insects and titanic fungus growths. Life has been greatly altered, and tiny Man is now in the process of becoming acclimated to the change. We again meet our hero Burl, but this time a far greater danger menaces the human race. The huge insects are still in evidence, but the terror they inspire is as nothing compared to the deadly Red Dust. You will follow this remarkable story with breathless interest. "Burl raised his spear, and plunged down on the back of the moving thing, thrusting his spear with all the force he could command. He had f...
Space Platform
SPACE PLATFORM tells the exciting story of a young man helping to build this first station. With scientific accuracy and imagination Murray Leinster, one of the world's top science-fiction writers, describes the building and launching of the platform. Here is a fast-paced story of sabotage and murder directed against a project more secret and valuable than the atom bomb!
Tanks
Tanks and the future of war is what Murray Leinster speculates about in this story. Written in the 1920's he observed the terrible new inventions that were used in World War I to kill people, armored tanks and poisoned gas and then tells us how war will be fought in the future. In this case the war will occur in 1932 and be between the US and the 'Yellow enemy'. It was published in the very first issue of Astounding Stories of Super Science, January 1930. It is science fiction in the sense that it guesses what the future will hold for man based on developing the technology that was coming into being at the time, the 1920's. He leads off with a 'quote' from a future historian "

...
Murder Madness
Murder Madness! Seven Secret Service men had completely disappeared. Another had been found a screaming, homicidal maniac, whose fingers writhed like snakes. So Bell, of the secret "Trade," plunges into South America after The Master--the mighty, unknown octopus of power whose diabolical poison threatens a continent!
The Machine that Saved the World
They were broadcasts from nowhere--sinister emanations flooding in from space--smashing any receiver that picked them up. What defense could Earth devise against science such as this? In the far future of 1972, on a secret military installation, Staff Sergeant Bellews is an expert on the latest scientific discovery: a way for ordinary machines like vacuums and lawnmowers to gather experience in their jobs, becoming error free over time. Then the strange broadcasts began to blow up transmitters everywhere. Were they from space? Enemies? the future? He didn't care until they started messin' with his machines. Then he took it personally. (summary from the first chapter and Phil Chenevert)
Pariah Planet
When the blue plague appeared on the planet of Dara, fear struck nearby worlds. The fear led to a hate that threatened the lives of millions and endangered the Galactic peace. (Excerpt from the text.)
The Hate Disease
Dr. Calhoun and his pet tormal Murgatroyd work for the Interstellar Medical Service making routine public health inspections on far-flung colonial planets. When they reach Tallien Three they are greeted with a rocket attack by the Paras, a mutated form of human rapidly replacing the “normals”. The normals think it’s a pandemic of demonic possession but Calhoun has his doubts. If he can keep from turning into a Para, or being assassinated by them he just might figure this thing out. – The Hate Disease was first published in the August 1963 edition of Analog Science Fact and Fiction magazine.
Operation Terror

An unidentified space ship lands in a Colorado lake. Equipped with a paralyzing ray weapon, the creatures begin taking human prisoners. A loan land surveyor and a journalist are trapped inside the Army cordon, which is helpless against the mysterious enemy. Can they stop the aliens before it is too late?