Cosmic company - Seth Shostak

Is there life elsewhere in the universe? What might it be like and how will we ever find it?
Cosmic Company ponders the possibility of aliens visiting the Earth, as well as what it would mean if we were to pick up a signal from the cosmos that would prove we're neither alone, nor the smartest creatures in creation. It explains why scientists think life might be plentiful on other worlds, and how we might get in touch. Containing a thorough overview of the science and technology behind the search for life, the book highlights current and future space missions and research, which are aiming to answer some of the greatest questions mankind has ever asked. This easy-to-read book, by two experienced writers of popular astronomy, is suitable for anyone who ever wondered whether there's anybody out there