Hindawi Publishing Corporation Advances in High Energy Physics Volume 2010, Article ID 379473, 6 pages doi:10.1155/2010/379473 Research Article Møller’s Energy in the Kantowski-Sachs Space-Time M. Abdel-Megied and Ragab M. Gad Mathematics Department, Faculty of Science, Minia University, 61915 El-Minia, Egypt Correspondence should be addressed to Ragab M. Gad, ragab2gad@hotmail.com Received 17 December 2009; Accepted 24 February 2010 Academic Editor: Ira Rothstein Copyright q 2010 M. Abdel-Megied and R. M. Gad. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We have shown that the fourth component of Einstein’s complex for the Kantowski-Sachs space- time is not identically zero. We have calculated the total energy of this space-time by using the energy-momentum definitions of Møller in the theory of general relativity and the tetrad theory of gravity. 1. Introduction Since the birth of the theory of general relativity, this theory has been accepted as a superb theory of space-time and gravitation, as many physical aspects of nature have been experimentally verified in this theory. However, this theory is still incomplete theory; namely, it lacks definition of energy and momentum. In this theory many physicists have introduced different types of energy-momentum complexes 1–5, each of them being a pseudotensor, to solve this problem. The nontensorial property of these complexes is inherent in the way they have been defined and so much so it is quite difficult to conceive of a proper definition of energy and momentum of a given system. The recent attempt to solve this problem is to replace the theory of general relativity by another theory, concentrated on the gauge theories for the translation group, the so called teleparallel equivalent of general relativity. We were hoping that the theory of teleparallel gravity would solve this problem. Unfortunately, the localization of energy and momentum in this theory is still an open, unsolved, and disputed problem as in the theory of general relativity. Møller modified the theory of general relativity by constructing a gravitational theory based on Weitzenb¨ ock space-time. This modification was to overcome the problem of the energy-momentum complex that appears in Riemannian space. In a series of paper 6–8, he was able to obtain a general expression for a satisfactory energy-momentum complex in