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.

"Pluto the planet Was really quite proud. But at the party of planets, It wasn't allowed... Scientists have determined that Pluto is a minor planet and is no longer considered one of the main planets of the Solar System. But that doesn't mean we don't love Pluto and the other minor planets in the universe! From the team behind the adorably popular 8 Little Planets comes a new tale about the planet who no longer fits in"--

An exciting introduction to the solar system from Chris Ferrie, #1 science book writer for children, and creator of the Baby University series 8 little planets with the Sun at the center.each one wishing it were a little bit better...Old slow Neptune felt it was behind.165 years to circle the sun is an awful long time!the 8th little planet did not worry.It spins on its axis in a really big hurryTo the tune of "Ten Little Monkeys Jumping on the Bed" comes a new bedtime story from bestselling author Chris Ferrie that's sure to get little ones excited about the solar system while learning new facts about each planet!

Explores the planets of our solar system, highlighting the prominent features of each. Includes new photos and information gathered by the Voyager explorations.

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.

Profiles each of the planets in Earth's solar system, including Pluto, Ceres, Eris, Haumea, MakeMake, the sun, the Oort cloud, comets, and more.