A ray of light in a sea of dark matter

What's in the dark? Countless generations have gazed up at the night sky and asked this question. A Ray of Light in a Sea of Dark Matter offers readers an accessible explanation of how astronomers probe dark matter. Readers quickly gain an understanding of what might be out there, how scientists arrive at their findings, and why this research is important to us. Engaging and insightful, Charles Keeton gives everyone an opportunity to be an active learner and listener in our ever-expanding universe.