WorldCat Identities

Walz-Chojnacki, Greg 1954-

Overview
Works: 22 works in 66 publications in 1 language and 5,880 library holdings
Genres: Juvenile works  Literature  Handbooks and manuals  Conference papers and proceedings  Science fiction  Popular works 
Roles: Author, Performer
Publication Timeline
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Most widely held works by Greg Walz-Chojnacki
Celestial delights : the best astronomical events through 2001 by Francis Reddy( Book )

8 editions published between 1992 and 2012 in English and held by 488 WorldCat member libraries worldwide

This decade, the heavens will treat us to an exciting parade of meteor showers, planetary transits, lunar eclipses, and spectacular displays of northern lights. Learn to identify these wonders of the cosmos with Celestial Delights -- clear country skies and expensive telescopes not required. Both an introduction to astronomy and a calendar of upcoming celestial events, this layperson's guide forecasts and explains numerous naked-eye phenomena in lucid writing and easy-to-grasp diagrams. Specially written for urban and suburban skywatchers, Celestial Delights deepens our appreciation of what we see when we look up into the night sky, and inspires us to do so more often. Book jacket
Comet! : the story behind Halley's comet by Greg Walz-Chojnacki( Book )

2 editions published in 1985 in English and held by 462 WorldCat member libraries worldwide

Explains the nature of comets, what is known about Halley's comet, and various countries' plans to study it in 1985 and 1986. Makes suggestions for maximum viewing enjoyment
Our planetary system by Isaac Asimov( Book )

2 editions published in 1994 in English and held by 385 WorldCat member libraries worldwide

This book discusses the members of the Sun's family, and how each differs from the other
The moon by Isaac Asimov( Book )

4 editions published in 1994 in English and held by 382 WorldCat member libraries worldwide

This book discusses the different theories on the origins of the Moon and the space missions sent to study it
Death from space : what killed the dinosaurs? by Isaac Asimov( Book )

3 editions published between 1994 and 1995 in English and held by 347 WorldCat member libraries worldwide

This book discusses the possible causes and effects that led to the death of dinosaurs millions of years ago
UFOs : true mysteries or hoaxes? by Isaac Asimov( Book )

3 editions published in 1995 in English and held by 337 WorldCat member libraries worldwide

This book introduces information on unidentified flying objects
The birth of our universe by Isaac Asimov( Book )

3 editions published in 1995 in English and held by 322 WorldCat member libraries worldwide

This book introduces information to help the reqader understand the vastness of the universe
Cosmic debris : the asteroids by Isaac Asimov( Book )

1 edition published in 1994 in English and held by 317 WorldCat member libraries worldwide

Provides facts and information about asteroids
Our vast home : the Milky Way and other galaxies by Isaac Asimov( Book )

4 editions published in 1995 in English and held by 300 WorldCat member libraries worldwide

Provides an insider's view of our own Milky Way and discusses the nature and behavior of galaxies in general
Astronomy projects by Isaac Asimov( Book )

3 editions published in 1996 in English and held by 295 WorldCat member libraries worldwide

Presents a variety of astronomy projects, including creative writing and drawing assignments, modelmaking, sky observation, and experiments
Planet of extremes--Jupiter by Isaac Asimov( Book )

5 editions published in 1995 in English and held by 292 WorldCat member libraries worldwide

This book introduces Jupiter, the largest planet in our Solar System
Aliens and extraterrestrials : are we alone? by Isaac Asimov( Book )

2 editions published in 1995 in English and held by 272 WorldCat member libraries worldwide

This book discusses "extraterrestrials."
Pollution in space by Isaac Asimov( Book )

3 editions published in 1995 in English and held by 265 WorldCat member libraries worldwide

This book introduces information on pollution in space
Space colonies by Isaac Asimov( Book )

3 editions published in 1995 in English and held by 262 WorldCat member libraries worldwide

This book discusses the role that must be taken in dealing with other worlds
Discovering comets and meteors by Isaac Asimov( Book )

5 editions published between 1995 and 1996 in English and held by 250 WorldCat member libraries worldwide

Discusses the characteristics of comets and meteors and cites both famous appearances and unexplained mysteries connected with them
A double planet? : Pluto and Charon by Isaac Asimov( Book )

6 editions published between 1995 and 1996 in English and held by 243 WorldCat member libraries worldwide

Discusses the smallest, most distant, and most mysterious planet in our solar system, its discovery, its peculiar orbit, and its recently discovered satellite
Modern astronomy by Isaac Asimov( Book )

2 editions published in 1996 in English and held by 224 WorldCat member libraries worldwide

Offers an account of how scientists and amateurs use instruments such as space telescopes, computers, radio telescopes, and binoculars to study the universe
Science fiction : visions of tomorrow? by Isaac Asimov( Book )

1 edition published in 1995 in English and held by 220 WorldCat member libraries worldwide

This book compares science fiction with science fact
The 21st century in space by Isaac Asimov( Book )

3 editions published in 1996 in English and held by 214 WorldCat member libraries worldwide

Projects astronomical and astronautical possibilities for the future, such as huge telescopes, airplanes in space, a probe to the sun, and a landing on Mars
How was the universe born? by Isaac Asimov( Book )

1 edition published in 1995 in English and held by 1 WorldCat member library worldwide

Discusses the origins and characteristics of our universe, focusing on the nature of stars
 
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Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.14 (from 0.10 for Planet of ... to 0.33 for Celestial ...)

Death from space : what killed the dinosaurs?
Covers
Death from space : what killed the dinosaurs?UFOs : true mysteries or hoaxes?The birth of our universeAliens and extraterrestrials : are we alone?Discovering comets and meteorsA double planet? : Pluto and CharonThe 21st century in spaceHow was the universe born?
Alternative Names
Chojnacki, Greg, Walz-

Chojnacki, Greg Walz- 1954-

Languages
English (64)