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Habitable Planets for Man examines and estimates the probabilities of finding planets habitable to man, where they might be found, and the number there may be in our own galaxy. The author presents in detail the characteristics of a planet that can provide an acceptable environment for humankind, itemizes the stars nearest the earth most likely to possess habitable planets, and discusses how to search for habitable planets. Interestingly for our time, he also gives an appraisal of the earth as a planet and describes how its habitability would be changed if some of its basic properties were altered. This is a reprint of an edition originally published in 1964.
Presents an introduction to the Solar System and the physical features of the eight planets that revolve around the Sun, in a text that includes learning activities.
The message had seemed simple, yet it was more complex than Don could have imagined. He was being called from Earth to an alien world for reasons unknown¾save only that his life depended on it. But setting out for Mars and getting there in good shape turned out to be a lot more complicated than Don ever would have guessed possible. It was trouble enough being inexplicably hounded by Earth's secret police. But when he was hijacked by Venusian rebels, Don suddenly realized that he was trapped in the center of a war between worlds that could change the fate of the Solar System forever! At the publisher's request, this title is sold without DRM (Digital Rights Management).
Blast off on an exploration of outer space with this colorful solar system book for kids 3-5 Get little astronomers excited about the cosmos—from the bright and burning sun, to our own blue Earth, stormy Neptune, and every planet in between. With this incredible exploration of planets for preschool and kindergarten kids, curious learners will discover the ultimate solar system book, featuring amazing pictures and fascinating facts about what makes each planet so special, including its size, distance from the sun, what the surface is like, how many moons it has, and more! Go beyond other planet books for kids with: BIG, BEAUTIFUL IMAGES: Vibrant photos and illustrations will take kids deep into space—no telescope required. ASTRONOMY FOR KIDS: Learn all about the eight planets in our solar system, plus dwarf planets Ceres, Pluto, Eris, Haumea, and Makemake. FUN SPACE FACTS: Did you know the bubbles in soda are the same gas that's on Venus? Out of this world facts will make this toddler space book a hit! Show kids the amazing universe that surrounds them with My First Book of Planets.
The latest discoveries about our universe to keep readers updated on the latest developments in space.
Our solar system seems relatively peaceful from our perch here on Earth, however, that is far from reality. The star at the center of our existence has witnessed battles over planets and moons since the early stirrings of life on most of the planets in the system, countless millions of years in the past.
Zoooooooom! We're off on an exciting space adventure in our rocket to meet all the planets of the solar system. Join in with the rhymes and spot all the smiley-faced, friendly planets, from shimmering Saturn to mighty Mars. Little ones will have a blast (and be back in time for bed!) in this striking, read-aloud, story-led picture book. It's perfect for all would-be astronauts! A special edition where the words and pictures take you on a journey far beyond the page. This audio-enabled eBook comes with a gorgeous reading by Sarah Ovens, along with music and sound effects.
NASA Astrobiologist and renowned scientist Dr. David Grinspoon brings readers an optimistic message about humanity's future in the face of climate change. For the first time in Earth's history, our planet is experiencing a confluence of rapidly accelerating changes prompted by one species: humans. Climate change is only the most visible of the modifications we've made--up until this point, inadvertently--to the planet. And our current behavior threatens not only our own future but that of countless other creatures. By comparing Earth's story to those of other planets, astrobiologist David Grinspoon shows what a strange and novel development it is for a species to evolve to build machines, and ultimately, global societies with world-shaping influence. Without minimizing the challenges of the next century, Grinspoon suggests that our present moment is not only one of peril, but also great potential, especially when viewed from a 10,000-year perspective. Our species has surmounted the threat of extinction before, thanks to our innate ingenuity and ability to adapt, and there's every reason to believe we can do so again. Our challenge now is to awaken to our role as a force of planetary change, and to grow into this task. We must become graceful planetary engineers, conscious shapers of our environment and caretakers of Earth's biosphere. This is a perspective that begs us to ask not just what future do we want to avoid, but what do we seek to build? What kind of world do we want? Are humans the worst thing or the best thing to ever happen to our planet? Today we stand at a pivotal juncture, and the answer will depend on the choices we make.
Discover the mysteries of the Universe and journey to galaxies beyond our own in this fact-including companion to space. From icy worlds and hot, fiery giants to the biggest telescopes and latest spacecraft, this ebook covers more than 40 profiles of the planets, stars, and objects in our Universe. Find out all about our neighbouring planets, from tiny Mercury to gigantic Jupiter. Discover what lies beyond our Solar System and the stars we can see in the night sky. Learn about the latest space technology and when humans may finally land on Mars. Broken down by type, each object is presented in a clear, engaging way, with stunning images and bite-sized chunks of information. Detailed NASA photography brings the mysteries of outer space to life, while pronunciation guides help with tricky names, and a visual index gives a quick overview of all the key objects in the ebook. Filled with fascinating details for every young stargazer and budding astronaut, My Book of Stars and Planets is the perfect first reference book on space and the Universe for kids.