, Volume 172, Issue 1-4, pp 1-3
Date: 18 Oct 2012

Foreword

This is an excerpt from the content

The state and evolution of plasmas in the corona and the heliosphere are determined by physical processes that occur over an enormous range of spatial scales, from macroscopic coronal holes and magnetic arcades to kinetic scales where dissipative processes take place. Our progress in solar and heliospheric physics is therefore intrinsically linked to our knowledge of some of the most fundamental processes of plasma physics, which are expected to be of relevance to all astrophysical plasmas.

A workshop held at the International Space Science Institute (ISSI) in Bern, Switzerland, in January 2010 brought together experts focused on three key driving questions at the forefront of solar and heliospheric physics whose solutions are recognized to be multi-scale in nature. For each of these questions, which will be briefly discussed in this foreword, experts summarized the most recent experimental and theoretical results and also the limitations of our present understanding and approaches. A s ...