Merlin’s Tour of the Universe is many things: it is a compendium of irrefutable, fascinating fact about all universe-related topics; it can be read linearly front to back, selectively from the 13 chapters, or by random dippings anywhere in the book; a useful index makes it a handy reference; and it makes a great coffee-table book.
The format of the book is question-and-answer: questions by the public, and answers by Merlin, a fictitious creation of DeGrasse Tyson’s, who provides these biographical details: “Merlin was born nearly five billion years ago on the planet Omniscia—one of a five-planet system in orbit around the star Draziw, two-and-a-half million light years away in the Andromeda galaxy.” Merlin is also multi-degreed in astrophysics, history, geophysics, chemistry, and philosophy, with a passion for acquiring and then sharing knowledge.
The establishment of a “Dear Merlin” column in an astronomy magazine provided a mechanism for the public to submit, and for Merlin to answer, astronomy questions without limits. Since each question and answer occupy a single page or less, this makes for quick reading. Merlin’s Tour of the Universe is a vast, updated (from 1989) collection of wide-ranging questions and answers. As well as sections covering Earth, Moon, Sun, and Stars, there are absorbing sections on Asteroids, Comets, and Meteors, Gravity, Light and Telescopes, and Black Holes, Quasars, and the Universe.
What adds pleasure for readers is DeGrasse Tyson’s infectious passion for—of all things—astrophysics, and his irrepressible and mischievous sense of humor aided by numerous, humorous, cartoon-like sketches to illustrate a particular astrophysical fact. For example, a question about the dark side of the moon drew this response from Merlin:
Contrary to popular musical literature and folklore, there is no “dark side” of the Moon. Ever since Pink Floyd released their hit album The Dark Side of the Moon in 1973, Merlin has been working round-the-clock to undo the damage it has caused.
Or, in debunking the myth of planet Venus being mistaken for a star, Merlin’s droll response is:
Otherwise, Venus is typically the first “star” to be seen at night, fooling many people into wishing upon it. But Venus is a planet, so that is one of the reasons why none of your wishes ever came true.
This is a light-hearted, informal way to learn serious and fun facts about our universe. DeGrasse Tyson’s highly entertaining and informative book is guaranteed to keep you in a sort of gravitational, periodic browsing orbit for a long time. Enjoy!