CME eruption and propagation from the solar source to interplanetary space. Panels a) and b): two cartoons with extrapolation field lines by the method of Wang (2001), shown against MDI magnetograms, illustrating the the field evolutions before and after the flare. The field configurations of AR 10930 include the top magnetic arcades (red), the transverse CS (top green), the filament system (light and thick blue), and the AR neutral line (yellow dashed), as well as the vertical CS (green rectangle in panel b)) to be elongated. Panel c): a cartoon illustrates the CME related interplanetary structures, which are shock (black dashed), shock sheath, the interplanetary arcades (red), and the interplanetary transverse CS (ITCS, green), and the MC (blue). The long black arrow denotes the direction along which STEREO or ACE traversed the shock and the MC.