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"What if?" questions stimulate people to think in new ways, to refresh old ideas, and to make new discoveries. In What If the Earth Had Two Moons, Neil Comins leads us on a fascinating ten-world journey as we explore what our planet would be like under alternative astronomical conditions. In each case, the Earth would be different, often in surprising ways. The title chapter, for example, gives us a second moon orbiting closer to Earth than the one we have now. The night sky is a lot brighter, but that won't last forever. Eventually the moons collide, with one extra-massive moon emerging after a period during which Earth sports a Saturn-like ring. This and nine and other speculative essays provide us with insights into the Earth as it exists today, while shedding new light on the burgeoning search for life on planets orbiting other stars. Appealing to adult and young adult alike, this book is a fascinating journey through physics and astronomy, and follows on the author's previous bestseller, What if the Moon Didn't Exist?, with completely new scenarios backed by the latest astronomical research.
This is the story of John, an average man in an average town, somewhere in England, but the events that unfold, just happened to happen to John, who is cursed with the knowledge that there is more to life. Knowledge for some is a blessing, but for others, with no hope of change, stuck in a meaningless existence, it’s a curse. After all, ignorance is bliss.... isn’t it? Until one winter’s morning, he wakes up for another early morning shift. Thinking he’s late, he rushes down stairs and out the door, but this is where his adventure begins. For instead of stepping out into a cold winter’s morning, he finds himself waking to the sun beating down hard on his back. He is in the middle of a desert, how he got there, he has no idea, and where here is, is the biggest mystery of all. Which will take him on an adventure, across strange lands and places, seeing even stranger animals, and making friends with people and creatures, he couldn’t have imagined. Some of which would travel with him, showing and sharing some of the wonders along the way, in these strange yet sometimes dark and marvellous lands, as he searches for answers.
An astonishing exploration of planet formation and the origins of life by one of the world’s most innovative planetary geologists. In 1959, the Soviet probe Luna 3 took the first photos of the far side of the moon. Even in their poor resolution, the images stunned scientists: the far side is an enormous mountainous expanse, not the vast lava-plains seen from Earth. Subsequent missions have confirmed this in much greater detail. How could this be, and what might it tell us about our own place in the universe? As it turns out, quite a lot. Fourteen billion years ago, the universe exploded into being, creating galaxies and stars. Planets formed out of the leftover dust and gas that coalesced into larger and larger bodies orbiting around each star. In a sort of heavenly survival of the fittest, planetary bodies smashed into each other until solar systems emerged. Curiously, instead of being relatively similar in terms of composition, the planets in our solar system, and the comets, asteroids, satellites and rings, are bewitchingly distinct. So, too, the halves of our moon. In When the Earth Had Two Moons, esteemed planetary geologist Erik Asphaug takes us on an exhilarating tour through the farthest reaches of time and our galaxy to find out why. Beautifully written and provocatively argued, When the Earth Had Two Moons is not only a mind-blowing astronomical tour but a profound inquiry into the nature of life here—and billions of miles from home.
Demonstrates how ten hypothetical situations would affect our planet and life on it. Topics include: what if the moon didn't exist, what if earth were tilted like Uranus, what if a black hole passed through earth, and so on.
From writer Stacy McAnulty and illustrator Stevie Lewis, Moon! Earth's Best Friend is a light-hearted nonfiction picture book about the formation and history of the moon—told from the perspective of the moon itself. Meet Moon! She's more than just a rock—she’s Earth’s rock, her best friend she can always count on. Moon never turns her back on her friend (literally: she's always facing Earth with the same side!). These two will stick together forever. With characteristic humor and charm, Stacy McAnulty channels the voice of Moon in this next celestial "autobiography" in the Our Universe series. Rich with kid-friendly facts and beautifully brought to life by Stevie Lewis, this is an equally charming and irresistible companion to Earth! My First 4.54 Billion Years and Sun! One in a Billion.
Origins of the Earth, Moon, and Life: An Interdisciplinary Approach presents state-of-the-art knowledge that is based on theories, experiments, observations, calculations, and analytical data from five astro-sciences, astronomy, astrobiology, astrogeology, astrophysics, and cosmochemistry. Beginning with the origin of elements, and moving on to cover the formation of the early Solar System, the giant impact model of the Earth and Moon, the oldest records of life, and the possibility of life on other planets in the Solar System, this interdisciplinary reference provides a complex understanding of the planets and the formation of life. Synthesizing concepts from all branches of astro-sciences into one, the book is a valuable reference for researchers in astrogeology, astrophysics, cosmochemistry, astrobiology, astronomy, and other space science fields, helping users better understand the intersection of these sciences. - Includes extensive figures and tables to enhance key concepts - Uses callout boxes throughout to provide context and deeper explanations - Presents up-to-date information on the universe, stars, planets, moons, and life in the solar system - Combines knowledge from the fields of astrogeology, astrophysics, cosmochemistry, astrobiology, and astronomy, helping readers understand the origins of the Earth, the moon, and life in our solar system
Our Solar System contains more moons than planets. They show astonishing variety, and some look more likely than Mars to host microbial life. David Rothery describes these fascinating small worlds, their discovery, names, and what they can tell us about our solar system.
John Abbott is all in. He’s up to his eyeballs in debt to pay for school, and he’s just moved his small family forty light-years from Earth for a plum job with the wealthy interstellar corporation, The Sarovar Company. John’s first assignment is to discreetly investigate possible corruption at the remote Arrowhawk Station, where Company traders buy the famous Sarovari Weave from the three-sided, crablike Weavers. John finds evidence of theft and worse, but when the guilty parties realize he’s getting close, they come after him and his family. Can John catch the thieves and end their corrupt trade? Can he head off a war between the Company and the Weavers? Can he make a life for his family in this remote wilderness without corrupting himself? With no way back to Earth, the only direction for John Abbott and his family to go is forward—into danger. At the publisher's request, this book is sold without DRM (Digital Rights Management). Praise for D.J. Butler: “It’s like Jim Butcher crossed with Grapes of Wrath!”—Larry Correia “Butler and Ritchey return to Depression-era Utah for a second thrilling tale of murder and folk magic (after The Cunning Man). . . . The play between Hiram’s earnest Mormonism and the more secular Michael’s growing unease with folk magic adds depth to the father-son dynamic, and the false leads and eccentric side characters make for a delightful mystery. This well-crafted historical fantasy is sure to please.”—Publishers Weekly “An attempt at charity during the Great Depression turns into a protracted fight against supernatural forces in this admirable paranormal mystery. . . . the richly imagined magic system and glimpses of Mormon culture create a fully realized world. Historical fantasy fans will delight in the zigzagging plot of this mystery.”—Publishers Weekly “An amazing tale that grabs you by the throat and won’t let go! Butler & Ritchey are a literary force to be reckoned with! Hit that download button and grab your copy now! The Cunning Man will never let you go!”—Sherrilyn Kenyon, #1 New York Times best-selling author “. . . a brisk and engaging narrative . . . folk and religious based magic . . . for fans of urban or historical fantasy . . . a satisfying read.”—Booklist “Butler follows Witchy Eye with a satisfying second tale of a magic-filled early America. . . . Deep and old magic influences both places and characters, and the story is tightly focused on the determined Sarah . . . Fans of epic and alternate historical fantasy will savor this tale of witchery and intrigue.”—Publishers Weekly “For readers who love history-based fantasy, steampunk, or urban fantasy . . . this series . . . gives the genre a new twist.”—Booklist “. . . you can’t stop yourself from taking another bite . . . and another . . . and another. . . . I didn’t want to stop reading. . . . Kudos!”—R.A. Salvatore “Excellent book. I am impressed by the creativity and the depth of the worldbuilding. Dave Butler is a great storyteller.”—Larry Correia “Witchy Eye is an intricate and imaginative alternate history with a cast of characters and quirky situations that would make a Dickens novel proud.”—Kevin J. Anderson “Butler’s fantasy is by turns sardonic and lighthearted; ghoulish shadows claw into the most remote areas and heroism bursts out of the most unlikely people. Sarah is the epitome of the downtrodden hero who refuses to give up until she gets what she needs, and her story will appeal to fantasy readers of all stripes.”—Publishers Weekly “David's a pro storyteller, and you're in for a great ride.”—Larry Dixon “. . . a fascinating, grittily flavored world of living legends. Hurry up and write the next one, Dave.”—Cat Rambo “This is enchanting! I'd love to see more.”—Mercedes Lackey “Goblin Market meets Magical Musketpunk . . . A great ride that also manages to cover some serious cultural terrain.”—Charles E. Gannon “Witchy Eye is a brilliant blend of historical acumen and imagination, a tour-de-force that is at once full of surprises and ultimately heart-warming. This is your chance to discover one of the finest new stars writing today!”—David Farland “A gritty, engrossing mash-up of history, fantasy, and magic. Desperate characters careen from plot twist to plot twist until few are left standing.”—Mario Acevedo “Captivating characters. Superb world-building. Awesome magic. Butler fuses fantasy and history effortlessly, creating a fascinating new American epic. Not to be missed!”—Christopher Husberg “[A] unique alternative-history that is heavily influenced by urban and traditional fantasy and steeped in the folklore of the Appalachians. . . . Fans of urban fantasy looking to take a chance on something with a twist on a historical setting may find this novel worth their time.”—Booklist
Collections of short plays based on grade specific subject matter taught in elementary classrooms. Used as focused learning exercises, each play is expressly designed to boost comprehension and creativity.
Discription Eight of the ten astronauts sent to colonize a planet revolving around a star fifty-five light years from Earth had perished. With just two to do the work of ten, the mission may be doomed. And, one of the remaining crewmembers has been injured from the cryogenic sleep, leaving Drake VanDam the last man standing. Hominids and Neanderthals roam the planet in search of a better way of life, while one alien from Earth tries to complete a mission designed for ten. There is a love story, a love triangle, a war story, and a new day dawning. With the rewards of a wonderful life for a space explorer who works hard to beat the