This book is a new look at one of the hottest topics in contemporary science – dark matter. It is the pioneering text dedicated to sterile neutrinos as candidate particles for dark matter, challenging some of the standard assumptions that may be true for some dark-matter candidates, but not for all. So, this can be seen either as an introduction to a specialized topic or as an out-of-the-box introduction to the field of dark matter in general.

No matter if you are a theoretical particle physicist, an observational astronomer, or a ground-based experimentalist, no matter if you are a graduate student or an active researcher, you can benefit from this text, for a simple reason: a non-standard candidate for dark matter can teach you a lot about what we truly know about our standard picture of how the universe works.