Foreword: Advanced Science Letters (ASL), Special Issue on Computational Astrophysics

Computational astrophysics has undergone unprecedented development over the last decade, becoming a field of its own. The challenge ahead of us will involve increasingly complex multi-scale simulations. These will bridge the gap between areas of astrophysics such as star and planet formation, or star formation and galaxy formation, that have evolved separately until today. A global knowledge of the physics and modeling techniques of astrophysical simulations is thus an important asset for the next generation of modelers. With the aim at fostering such a global approach, we present the Special Issue on Computational Astrophysics for the Advanced Science Letters (http://www.aspbs.com/science.htm). The Advanced Science Letters (ASL) is a new multi-disciplinary scientific journal which will cover extensively computational astrophysics and cosmology, and will act as a forum for the presentation and discussion of novel work attempting to connect different research areas. This Special Issue collects 9 reviews on 9 key topics of modern astrophysics and cosmology in which simulations have had a pivotal contribution. From asteroid collisions to the formation of stars, from the physics and origin of galaxy clusters to large-scale phenomena such as the reionization of the Universe, it is a showcase of state-of-the-art numerical work in a diverse range of topics. The 9 reviews are available on today's listing of the astro-ph archive (arXiv id numbers are provided in this foreword).