**5. Conclusions: about our learning with the in situ observation using Voyager SC**

In this chapter, it is probed a variety of key properties of the local to solar system interstellar molecular cloud and its millions-of-year presence of a very strong magnetic field. The proof was achieved by the in situ measurements of a variety of its properties for a whole set of data recollected by several instruments in the mission Voyager (V1 and V2 SC) as we reported: Magnetometer, Radio Instrument, Plasma Instrument, low and high energy particle instrument of the Voyager SC. In this way, the Voyager SC can identify the presence of a medium that has very long-lasting permanent magnet characteristics and an origin foreign to the solar magnetized plasma, which has its source in the solar corona.

Further, it is presented the consistency of the interpretation of the medium being matter in a strong **B**-field with a 3 D Langmuir amorphous crystal gas. The role of the frozen matter, the dilute electrons, and the presence of B-field convected currents is the source of a very stable magnetic field, as we know from some simple modeling illustrated in Section 4.

Section 3 discussed the identification of a consistent constitutive permeability property differing from the permeability of the vacuum smaller by a factor ½ appears to be the case considering its consistency by observations by V1 and V2. (See V2 preliminary estimate in Appendix B.)

A simple estimate is made of the mass of the local molecular clouds in which the Sun, Alpha Centauri, and a few other stars found in its neighborhood of the sketched molecular cloud complex, which also approximately co-move with it around the galaxy center.

Finally, in our discussion (Section 4), we extrapolate the interpreted properties of the medium to a possible origin of our home galaxy and other structures observed in astrophysics.

Among key subjects in need of further study are: (a) energy/nature arguments on the reasons for nonradial orientation of the magnetic **B-**field at heliopause in the

*Hydromagnetic Steady Magnetized Plasma Encountered by Voyager in the Interstellar Space DOI: http://dx.doi.org/10.5772/intechopen.112362*

heliosphere sheath and very LISM. A matter which is still in need of understanding. (b) Stronger validation of assumptions made in this work which so far offer consistent support of the nature of the permanent magnetized state of matter here introduced to a wider range of readers until now mostly limited to members of the geophysical and astrophysical communities. (c) The role and range of cosmic rays' possible modification of the properties of the MHD structure.
