The Best Comets eBooks of All Time

With courage and confidence, Caroline Herschel (1750-1848) becomes the first woman professional scientist and one of the greatest astronomers who ever lived. Born the youngest daughter of a poor family in Hanover, Germany, Caroline was scarred from smallpox, stunted from typhus, and used by her parents as a scullery maid. But when her favorite brother, William, left for England, he took her with him. The siblings shared a passion for stars, and together they built the greatest telescope of their age, working tirelessly on star charts.

Using their telescope, Caroline discovered fourteen nebulae and two galaxies, was the first woman to discover a comet, and became the first woman officially employed as a scientist--by no less than the King of England. The information from the Herschels' star catalogs is still used by space agencies today. The book includes excerpts from Caroline Herschel's autobiography. A 2018 NSTA-CBC Outstanding Science Trade Book for Students K-12.

The Comet Clement Collection includes Books 1-4 in the series at a discounted price!Book 1 - The Inner Circle (averages 4.1 out of 5 stars on Amazon out of 500+ review)1908... Siberia... A tiny comet rips through Earth's atmosphere and explodes above the Tunguska region of Siberia, instantly engulfing thousands of square acres of the mostly desolate region. The explosion is heard for hundreds of miles, the light of the comet seen halfway across the globe. Had the comet hit a few hours earlier in a more populated area, millions would have been killed...

A century later, another comet - this one hundreds of times bigger and more powerful - encounters a black hole in deep space and is pushed onto a new, deadly course leading straight to Earth...A small group of humans - including the President of the United States, a former astronaut and a middle school science teacher - discovers the existence of this potentially deadly comet and keep its existence hidden from the rest of the world. Although the group - which calls itself the Inner Circle - has twelve years to deal with the problem, they will need every second of that time. Not only must they figure out a way to avert this crisis, they must also start to make plans in case they can't avoid a catastrophe that could annihilate humankind...Book 2 - Interception (averages 4 out of 5 stars on Amazon out of 260+ reviews)The Inner Circle's plans to deflect the comet are in place but Neil Peterson's long journey to intercept Clement faces serious tests...The president is embattled in a bitter re-election attempt and knows that losing could lead to the comet secret being exposed to the world...NASSA's plans to build the biggest space station for 'scientific purposes' are put into effect...Earl Ackerman's paranoia leads him to making rash decisions about the secret that's slowly destroying the little sanity he has left...The secret can't stay hidden forever...Book 3 - The New Space Race (averages 4 out of 5 stars on Amazon out of 260+ reviews)Plans continue to move forward on the space station, which draws the ire of the country, but the Inner Circle won't be deterred from preparing for the worst...Tyler Ainsworth Jr. has learned of the secret and begins to make plans for his own massive shelter, this one to be in the ocean depths instead of the heavens...The president exchanges information about the comet with Russia for help on the station and Russia plans for their own safe haven deep in the mountains...A new American leader emerges who does not seem to share the Inner Circle's passion for constructing the space station...Another country enters the race to build a space station unlike anything humankind has ever seen...Book 4 - The Three Arks (averages 4 out of 5 stars on Amazon out of 230+ reviews)With a new president in office - and an apprehensive new ally in the Inner Circle - the men planning for the end of the world face new struggles. Will the space station be finished in time? How will they get passengers on board the space station without giving away the secret of Comet Clement?Tyler Ainsworth faces his own troubles with his seacraft. He needs more money to complete his boat but doesn't want to go to the Inner Circle for fear of losing even more control. How will he raise the funds? Can he maintain control of his seacraft's ownership? Will his high-class passengers lose their patience while waiting for the end of the world?The underground facility deep in the Ural Mountains seems to face the least amount of problems and some of the space station's staunchest supporters wonder if they've made a big mistake looking to the heavens for safety.The Three Arks are humankind's last chance... if they can survive the construction process...

An insider's look at the science of near-Earth comets and asteroids. Of all the natural disasters that could befall us, only an Earth impact by a large comet or asteroid has the potential to end civilization in a single blow. Yet these near-Earth objects also offer tantalizing clues to our solar system's origins, and someday could even serve as stepping-stones for space exploration. In this book, Donald Yeomans introduces readers to the science of near-Earth objects―its history, applications, and ongoing quest to find near-Earth objects before they find us.

In its course around the sun, the Earth passes through a veritable shooting gallery of millions of nearby comets and asteroids. One such asteroid is thought to have plunged into our planet sixty-five million years ago, triggering a global catastrophe that killed off the dinosaurs. Yeomans provides an up-to-date and accessible guide for understanding the threats posed by near-Earth objects, and also explains how early collisions with them delivered the ingredients that made life on Earth possible. He shows how later impacts spurred evolution, allowing only the most adaptable species to thrive―in fact, we humans may owe our very existence to objects that struck our planet. Yeomans takes readers behind the scenes of today's efforts to find, track, and study near-Earth objects. He shows how the same comets and asteroids most likely to collide with us could also be mined for precious natural resources like water and oxygen, and used as watering holes and fueling stations for expeditions to Mars and the outermost reaches of our solar system.