The Solar Atmosphere and Space Weather -- Mercury -- The Atmosphere of Venus: Current Knowledge and Future Investigations -- Moon's Origin And Evolution: Alternatives and Implications -- Evidence for Climate Change on Mars -- The Habitability of Mars: Past and Present -- Jupiter-sized Planets in the Solar System and Elsewhere -- The Icy Moons of Jupiter -- Cassini at Saturn: The First Results -- The Ice Giant Systems of Uranus and Neptune -- The Solar System Beyond The Planets -- The Nature of Comets. This book, the first in a series of forthcoming volumes, consists of topical and timely reviews of a number of carefully selected topics in solar systemn science. Contributions, in form of up-to-date reviews, are mainly aimed at professional astronomers and planetary scientists wishing to inform themselves about progress in fields closely related to their own field of expertise.