Hidden Heroes: Hidden Human Computers: The Black Women of NASA
Women in Science: Caroline Herschel: Astronomer and Cataloger of the Sky
Alternative Energy: Solar Energy
The Study of Science: Space Exploration
Exploring Our Universe: Planets
Climate Change: An Encyclopedia of Science, Society, and Solutions
Mystery Hunters: Aliens and UFOs
Nature's Mysteries: Auroras: Behind the Northern and Southern Lights
The Study of Science: Physical Science
Planetary Exploration: Pluto and Other Dwarf Planets
Planetary Exploration: Mercury
UXL Encyclopedia of Weather and Natural Disasters
Spectacular Space Science: Exploring Planet Earth and the Moon
Out of This World: Space Travel
Freaky True Science: Freaky Space Stories