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In the present letter the infinite domain wall geometry in GR\cite{vilenkin1}-\cite{ipser} is reconsidered in Taub coordinates \cite{taub}.The use of these coordinates makes explicit that the regions between thehorizons and the wall and the outer ones are flat. By use of these coordinates,it is suggested that points inside the horizon and outside never communicateeach other. The wall is seen on the left and the right side as contracting andexpanding portions of spheres and a plane singularity, which is the imprint thecontracting and expanding domain wall. Particles of each region will neverreach this imprint. In addition, at some point during the evolution of thesystem, four curious holes inside the space time appear, growing at the speedof light. This region is not parameterized by the standard Taub coordinates,and the boundary of this hole adsorbs all the particles that intersect it. Theboundary of these holes are composed by points which in the coordinates of\cite{vilenkin1}-\cite{ipser} are asymptotic, in the sense that they correspondto trajectories tending to infinite values of the time or space likecoordinates, while the proper time elapsed for the travel is in fact finite.This is not paradoxical, as the coordinates \cite{vilenkin1}-\cite{ipser} arenot to be identified with the true lengths or proper time on the space time.The correct interpretation of the boundary is particularity relevant whenstudying scattering of quantum fields approaching the domain wall. A partialanalysis about this issue is done in the last section.

Peculiarities for domain walls in Taub coordinates