Best Selling Books by Richard Hantula

Provides tips on how to spot some of the wonders of the solar system and galaxy, with emphasis on viewing from the northern hemisphere; introduces different types of telescopes; and discusses astronomical mysteries and amazing facts.

An examination of the contributions that Earth''s nations have made toward the exploration of the universe.

Describes what can cause space debris, the problems it can cause, and how to clean up the pollution of space around the Earth and beyond.

A description of the sun, the star of our solar system, which includes information on its origin, physical composition, and characteristics, as well as on studies made of the sun by instruments and satellites.

Briefly discusses facts and fantasies about unidentified flying objects.

Compares what writers over the centuries have written about an imaginary future with the reality revealed by time.

Describes the planet closest to the sun, examining its size and composition, its surface features, its orbit, and efforts to learn more about this planet.

Explores star groups, the Magellanic Clouds, the Milky Way, black holes, and different types of galaxies including elliptical, spiral, and cannibal.

Explains key concepts in biology, including evolution, ecosystems, and food webs.

Discusses ancient beliefs and theories about the universe, including the sun being the center and the Big Bang theory.

Intrduces the smallest known planet in the solar system as well as its moon.

Nicknamed the Keystone State for the pivotal role it played in colonial days, Pennsylvania has transformed itself from an industrial hub whose strength rested on coal mining and steel production to a state with a diversified economy that includes natural gas, manufacturing, agribusiness, tourism, and more. This book presents an engaging overview of the history, culture, people, and geography of Pennsylvania, from the urban centers of Philadelphia and Pittsburgh to the rolling farmland of Pennsylvania Dutch country to the Pocono and Allegheny Mountains.

This complete Spanish translation of the highly acclaimed Isaac Asimov''s 21st Century Library of the Universe is ideal for students still developing their English-language skills.

Examines the mass extinction of dinosaurs and offers a possible explanation of the causes.

This book shows you how amazing and invisible forces work, along with the impact they have on our everyday lives.

This book explores the geography, history, people, government, and economy of the Island of Enchantment. Lists of key people, places, celebrations, plants and animals, cities, and political figures, plus recipes and craft projects, add to the understanding of the commonwealth with a rich and diverse history. All books in the It''s My State! ® series are the definitive research tool for readers looking to know the ins and outs of a specific state, including comprehensive coverage of its history, people, culture, geography, economy and government.

Introduces the bodies in space also known as planetoids, minor planets, or when they stray from their paths, meteoroids.

The titles in this popular series includes a variety of features that will help students learn about the Hoosier State. All books in the It''s My State! � series are the definitive research tool for readers looking to know the ins and outs of a specific state, including comprehensive coverage of its history, people, culture, geography, economy and government.

Presents a history of the sun and the nine planets, and discusses satellites and asteroids.