In 1998, astronomers discovered that the universe's expansion is accelerating, prompting the hypothesis of dark energy as the driving force. This mysterious energy purportedly constitutes 70% of the universe's energy budget and leads to accelerated cosmic expansion. However, a recent study suggests an alternative explanation: the Timescape model. It posits that the uneven distribution of matter causes varying expansion rates, creating an illusion of acceleration without dark energy. Using data from the Pantheon+ dataset of supernovas, researchers found the Timescape model sometimes outperformed the standard Lambda-CDM model in explaining nearby cosmic phenomena. Though promising, the study has limitations such as not considering peculiar velocities, Malmquist bias, or the latest DES5yr dataset. If validated, this model could significantly alter our understanding of cosmic expansion.