  The higher order statistics of magnetic field magnitude fluctuations in the
fast quiet solar wind are quantified systematically scale-by-scale for the
first time. We find a single global non-Gaussian scale free behaviour from
minutes to over 5 hours. This spans the signature of an inertial range of
magnetohydrodynamic (MHD) turbulence and a ~1/f range in magnetic field
components. This global scaling in field magnitude fluctuations is an intrinsic
component of the underlying texture of the solar wind and it suggests a single
stochastic process for magnetic field magnitude fluctuations operating across
the full range of MHD time scales supported by the solar wind. Intriguingly,
the magnetic field and velocity components show scale dependent dynamic
alignment outside of the inertial range.
