Here's how it works:
* Dark Adaptation: When you go from a bright environment to a dark one, your pupils dilate (get wider) to let in more light. This makes it easier to see in the dark.
* Increased Sensitivity: Your eyes also become more sensitive to light, making faint light sources appear brighter. This is due to changes in the photoreceptor cells in your retina.
* Contrast: In a dimly lit environment, there's less overall light. This makes any light source stand out more against the darkness, giving the impression that it's growing.
So, it's not the object itself that's growing, but rather our perception of it that changes due to our eyes adapting to the dark.
