The main intention of this paper is to start an open discussion about a new model with the potential to find a better understanding of several observations within astronomy. As a first step a model of an entraining force is introduced based on the observation that the distances between earth and moon respectively earth and sun are slightly increasing over the year. Based on further explanation on how to calculate the entraining force and its corresponding counter-torque similar to law of induction but for moving matter. Further on an outlook is given about how this force may contribute to a better understanding about how accretion disks or planetary ring systems are forming or how it may drive the differential rotation on the surface ofgas giants but also within galaxies related to their rotary curve. In a second step the consequences of the concept are described related to the current interpretation of red-shift. If the model of the entraining force will be further verified the concept of the expanding universe might have to be revised.