Stacking multiple exposures significantly improves deep space imaging by enhancing the signal-to-noise ratio, which is crucial in low-light conditions. Various software options exist for stacking, ranging from free tools like Deep Sky Stacker to more advanced programs like PixInsight and Nebulosity, each with unique features and learning curves. Users often face challenges with color balance and saturation in stacked images, particularly due to the effects of light pollution and sensor noise. Techniques such as adjusting RGB color curves and using software like Photoshop or ImageJ can help refine the final image quality. Overall, mastering stacking and post-processing techniques is essential for achieving clearer and more detailed astrophotography results.