High resolution X-ray observations of pulsar winds
  Young pulsars spin incredibly quickly, but are also slowing down at a very rapid rate. This process carries away enormous amounts of energy from the star in the form of a relativistic wind. Through the high resolution now offered by the Chandra X-ray Observatory, a flood of new observations of pulsars and their winds is demonstrating the diversity and complexity with which pulsars interact with their surroundings. This paper reviews our basic understanding of pulsar winds, and briefly summarizes some of the new insights provided by Chandra on shock structure, particle acceleration and wind composition. 
Bryan M. Gaensler (Harvard-Smithsonian CfA)