ISAAC THE COMET The shadows begin to overpower the light of day. The fleeting sun on the horizon as if being pushed. The Sky, dyed deep orange and red. This is when I take a deep sigh and ask myself: ... Who is doing all this?

In the gripping start to this young adult science fiction adventure series by popular Colorado radio host Dom Testa, the teenage crew of the starship Galahad must find a new home for humanity among the stars--if they fail, it will be the end of the human race.... When the tail of the comet Bhaktul flicks through the Earth's atmosphere, deadly particles are left in its wake. Suddenly, mankind is confronted with a virus that devastates the adult population. Only those under the age of eighteen seem to be immune. Desperate to save humanity, a renowned scientist proposes a bold plan: to create a ship that will carry a crew of 251 teenagers to a home in a distant solar system. Two years later, the Galahad and its crew—none over the age of sixteen—is launched. Two years of training have prepared the crew for the challenges of space travel. But soon after departing Earth, they discover that a saboteur is hiding on the Galahad! Faced with escalating acts of vandalism and terrorized by threatening messages, sixteen-year-old Triana Martell and her council soon realize that the stowaway will do anything to ensure that the Galahad never reaches its destination. The teens must find a way to neutralize their enemy. For if their mission fails, it will mean the end of the human race.... At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

A group of men and women, from a shattered society, ride a ball of ice through the solar system in search of a future.

Although the development of ideas about the motion and trajectory of comets has been investigated piecemeal, we lack a comprehensive and detailed survey of ph- ical theories of comets. The available works either illustrate relatively short periods in the history of physical cometology or portray a landscape view without adequate details. The present study is an attempt to review – with more details – the major physical theories of comets in the past two millennia, from Aristotle to Whipple. My research, however, did not begin with antiquity. The basic question from which this project originated was a simple inquiry about the cosmic identity of comets at the dawn of the astronomical revolution: how did natural philosophers and astronomers define the nature and place of a new category of celestial objects – comets – after Brahe’s estimation of cometary distances? It was from this turning point in the history of cometary theories that I expanded my studies in both the pre-modern and modern eras. A study starting merely from Brahe and ending with Newton, without covering classical and medieval thought about comets, would be incomplete and leave the fascinating achievements of post-Newtonian cometology unexplored.

“The first satisfying end-of-the-world novel in years . . . an ultimate one . . . massively entertaining.”—Cleveland Plain-Dealer The gigantic comet had slammed into Earth, forging earthquakes a thousand times too powerful to measure on the Richter scale, tidal waves thousands of feet high. Cities were turned into oceans; oceans turned into steam. It was the beginning of a new Ice Age and the end of civilization. But for the terrified men and women chance had saved, it was also the dawn of a new struggle for survival—a struggle more dangerous and challenging than any they had ever known. . . . “Take your earthquakes, waterlogged condominiums, swarms of bugs, colliding airplanes and flaming what-nots, wrap them up and they wouldn’t match one page of Lucifer’s Hammer for sweaty-palmed suspense.”—Chicago Daily News

DigiCat presents to you this unique and meticulously edited adventure collection: Five Weeks in a Balloon Journey to the Centre of the Earth From the Earth to the Moon Around the Moon The Adventures of Captain Hatteras In Search of the Castaways Twenty Thousand Leagues Under the Sea A Floating City The Adventures of Three Englishmen and Three Russians in South Africa The Fur Country Around the World in Eighty Days The Mysterious Island The Survivors of the Chancellor Michael Strogoff Hector Servadac The Underground City Dick Sand, A Captain at Fifteen The Begum's Fortune Tribulations of a Chinaman in China The Steam House Eight Hundred Leagues on the Amazon Godfrey Morgan or, The Robinson Crusoe School The Green Ray Mathias Sandorf The Star of the South Ticket No. "9672" Robur the Conqueror The Master of the World The Waif of "Cynthia" North Against South or, Texar's Revenge The Flight to France or, The Memoirs of a Dragoon Kéraban the Inflexible Adrift in Pacific or, Two Years' Vacation Topsy Turvy Cesar Cascabel Mistress Branican The Castle of the Carpathians Claudius Bombarnac Captain Antifer Facing the Flag An Antarctic Mystery Jules Gabriel Verne (1828-1905) was a French novelist, poet, and playwright best known for his adventure novels and his profound influence on the literary genre of science fiction.

This book will take the story of astronomy on from where Allan Chapman left it in Stargazers, and bring it almost up to date, with the developments and discoveries of the last three centuries. He covers the big names - Halley, Hooke, Herschel, Hubble and Hoyle; and includes the women who pushed astronomy forward, from Caroline Herschel to the Victorian women astronomers. He includes the big discoveries and the huge ideas, from the Milky War, to the Big Bang, the mighty atom, and the question of life on other planets. And he brings in the contributions made in the US, culminating in their race with the USSR to get a man on the moon, before turning to the explosion of interest in astronomy that was pioneered by Sir Patrick Moore and The Sky at Night.