The Universe

Energy, chemistry, solvents, and habitats – the basic elements of living systems - define the opportunities and limitations for life on other worlds. This class-tested text examines each of these parameters in crucial depth and makes the argument that life forms we would recognize may be more common in our solar system than many assume. It also considers, however, exotic forms of life that would not have to rely on carbon as basic chemical element, solar energy as a main energy source, or water as primary solvent. Finally the question of detecting bio- and geosignature of such life forms is discussed, ranging from Earth environments to deep space.

Not so if the book has been translated into Arabic. Now the reader can discern no meaning in the letters. The text conveys almost no information to the reader, yet the linguistic informa­ tion contained by the book is virtually the same as in the English original. The reader, familiar with books will still recognise two things, however: First, that the book is a book. Second, that the squiggles on the page represent a pattern of abstractions which probably makes sense to someone who understands the mean­ ing of those squiggles.

Many books on general astronomy have been published in recent years, but this one is exceptional in several respects. It not only provides the complete newcomer to astronomy with a broad picture, covering all aspects - historical, observational, space research methods, cosmology - but it also presents enough more advanced material to enable the really interested student to take matters further. Astronomy is essentially a mathematical science, but there are many people who are anxious to take more than a passing interest and yet are not equipped to deal with mathematical formulae. In this book, therefore, the mathematical sections are deliberately separated out, so that they can be passed over without destroying the general picture.

The year 2003 was the 50th anniversary of the seminal experiment of Stanley Miller. This was a unique opportunity for highlighting the current interest in this most interdisciplinary subject. The leading space agencies: the European Space Agency (ESA) as well as NASA, the American Space Agency, have planned missions that will elucidate some of the still unknown questions underlying research in the origin of life. New results are surpassing our ability to keep well informed: the reviews that we were presented at the Trieste meeting will bring the readers of this well-documented and timely book up to date in this fast-moving area.

Discover our role as humans in the Earth community. Explore the unfolding of the universe, Earth, & humans by drawing upon science & the humanities.