This is what a pulsar (formerly, "pulstar") is: link.
This is what it looks like, in theory:
This what it looks like, in reality:
This is how it sounds like, to me:
Composed by Vangelis, "Pulstar" was included in his 1976 album "Albedo 0.39".
Darkness and light on Ceres, by Dawn:
[A] "Schematic view of a pulsar. The sphere in the middle represents the neutron star, the curves indicate the magnetic field lines and the protruding cones represent the emission zones". Author: Mysid. Source: Wikipedia. This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license. My usage of the file does not suggest in any way its author endorsement of me or my use of the work.
[B] "A composite image of the Crab Nebula showing the X-ray (blue), and optical (red) images superimposed. The size of the X-ray image is smaller because the higher energy X-ray emitting electrons radiate away their energy more quickly than the lower energy optically emitting electrons as they move." Author: Optical: NASA/HST/ASU/J. Hester et al. X-Ray: NASA/CXC/ASU/J. Hester et al. Source: Wikipedia. This file is in the public domain.
[C] "Ceres awaits Dawn" (Feb 19, 2015). Author: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA. Source: Wikipedia This file is in the public domain.