Featuring full-color photographs, fact boxes, and graphic organizers, this book theorizes that a space object was responsible for the extinction of the dinosaurs 65 million years ago and explores whether such an event could threaten life on Earth again.
Describes galaxies, stars, and planets, where planets are likely to be, how astronomers observe or deduce their locations, how the Kepler space telescope helps in the search for planets, and what might be possible to observe in the future.
