Lucky Starr Series by Paul French, Isaac Asimov, Giuseppe Lippi

Earth is on the brink of catastrophe. The vital foodstuffs supplied by its Martian colony are being poisoned. Working in secret, the ruling Council of Science sends David Starr, its youngest member, to the Martian farmlands to discover the truth behind the murders...

Years ago, David Starr's parents were murdered by pirates from the asteroid belt. Now the pirates are threatening the commerce and safety of the far-flung Terrestrial Empire. David Starr - known to his friends as Lucky - has plans for vengeance: a daring foray into the pirates' forbidden lair that will wipe them out forever...

Isaac Asimov is universally acclaimed as one of the masters of modern science fiction. Now from this award-winning author, here are two tales of the adventures of David Satrr - a bold and resourceful champion of interstellar justice. David Starr, Space Ranger Earth is on the brink of catastrophe. The vital foodstuffs supplied by its Martian colony are being poisoned... moreIsaac Asimov is universally acclaimed as one of the masters of modern science fiction. Now from this award-winning author, here are two tales of the adventures of David Satrr - a bold and resourceful champion of interstellar justice. David Starr, Space Ranger Earth is on the brink of catastrophe. The vital foodstuffs supplied by its Martian colony are being poisoned. Working in secret, the ruling Council of Science sends David Starr, its youngest member, to the Martian farmlands to discover the truth behind the murders... Lucky Starr and the Pirates of the Asteroids Years ago, David Starr's parents were murdered by pirates from the asteroid belt. Now the pirates are threatening the commerce and safety of the far-flung Terrestrial Empire. David Starr - known to his friends as Lucky - has plans for vengeance: a daring foray into the pirates' forbidden lair that will wipe them out forever... less

From the distance it seemed an emerald green, fairyland bubble! Aphrodite, the largest city of Venus, deep under the planet's sea. There Earthmen had established an incredible civilization, but now it was threatened by some awesome force which preyed on men's minds.

From Wikipedia--Lucky Starr and the Big Sun of Mercury is the fourth novel in the Lucky Starr series, six juvenile science fiction novels by Isaac Asimov that originally appeared under the pseudonym Paul French. The novel was first published by Doubleday & Company in March 1956. Since 1972, reprints have included a foreword by Asimov explaining that advancing knowledge of conditions on Mercury have rendered some of the novel's descriptions of that world inaccurate.Cover artist Darrell K... moreFrom Wikipedia--Lucky Starr and the Big Sun of Mercury is the fourth novel in the Lucky Starr series, six juvenile science fiction novels by Isaac Asimov that originally appeared under the pseudonym Paul French. The novel was first published by Doubleday & Company in March 1956. Since 1972, reprints have included a foreword by Asimov explaining that advancing knowledge of conditions on Mercury have rendered some of the novel's descriptions of that world inaccurate.Cover artist Darrell K. Sweet less

With his academy roommate facing charges of treason, Starr sets course for Venus determined to clear his pal's name, and, in ""Lucky Starr and the Big Sun of Mercury,"" Starr must unravel murders on Mercury. Reprint.

Sabotage!!!Agrav. It was the century's most important advance in space travel...and an experiment so revolutionary that only the men who huddled beneath the surface of Jupiter Nine were permitted to know its full meaning.Yet someone else did know--knew everything, saw everything, head everything--and was diabolically sabotaging the top-secret mission.Who or what the enemy was, Lucky Starr didn't know. but one thing was certain. The deadly force was not human...not even remotely human!

Back Cover: Attack The twin rings of Saturn were suddenly swarming with the robot ships of the deadly Sirian enemy. The avowed antagonists of Earth, they had crossed 50 trillion miles of space to provoke a war which they knew they could not lose...for the awesome forces of earth dared not rally against the invaders. Only Lucky Starr, of Earth's Council of Science, had a chance to avert the impending galactic holocaust. But one slip-up in his daring plan would mean certain death.. moreBack Cover: Attack The twin rings of Saturn were suddenly swarming with the robot ships of the deadly Sirian enemy. The avowed antagonists of Earth, they had crossed 50 trillion miles of space to provoke a war which they knew they could not lose...for the awesome forces of earth dared not rally against the invaders. Only Lucky Starr, of Earth's Council of Science, had a chance to avert the impending galactic holocaust. But one slip-up in his daring plan would mean certain death...and a place in history as Earth's most infamous traitor! less

The Lucky Starr series has been a mainstay in science fiction paperback since the 1950s. With Asimov's inimitable style and knowledge, the fifth and sixth novels in the series--complete in a single volume--chronicle the latest adventures in an extraordinary young man's contributions to humankind's expansion into the Solar System.

Together for the first time in one blockbuster volume -- three more exciting SF adventures featuring Isaac Asimov's intrepid hero Lucky Starr...novels that are not only thrill-packed classics in their own right, but also hint at the connection between the world of Lucky Starr and the future history that forms the background of the author's acclaimed adult fiction... moreTogether for the first time in one blockbuster volume -- three more exciting SF adventures featuring Isaac Asimov's intrepid hero Lucky Starr...novels that are not only thrill-packed classics in their own right, but also hint at the connection between the world of Lucky Starr and the future history that forms the background of the author's acclaimed adult fiction.LUCKY STARR AND THE BIG SUN OF MERCURY takes Lucky to a scientific station on Mercury, where mysterious sabotage threatens research that could make Earth a paradise. It requires Lucky's keen understanding of the Sirian menace and the Three Laws of Robotics to save the day.In LUCKY STARR AND THE MOONS OF JUPITER, the Sirians are at it again. Their cleverest spy scheme yet has put the secrecy of Project Agrav's prototype spaceship in jeopardy, and it's up to Lucky to stop the information leak before it's too late.Sirian boldness reaches a peak in LUCKY STARR AND THE RINGS OF SATURN. The aliens have invaded our solar system to put a base on Titan, and Lucky must outwit a whole Sirian fleet to stop them. less