Three Steps to the Universe: From the Sun to Black Holes to the Mystery of Dark Matter

(The University of Chicago Press) The authors explain what scientists know about everything in space — from the sun to black holes and dark matter. They show readers how scientists acquire knowledge, and they explore the three worlds that exist for scientists: the world we see, the world we can find out about, and the world we think we know. David Garfinkle is a physics professor at Oakland University. Richard Garfinkle is a science fiction writer.