When one lives in a big Asian city, one tends to forget about what is up in the sky. The context simply does not allow for casual relaxed upward observations. On the streets, there are always people clamoring behind to ensure people move faster on sidewalks and pedestrian areas; high-rise buildings of all sorts densely sprouting out everywhere block out any chances of clear sky views at the ground level, and worst of all, flashy neon signs of commercial districts , along with thousands upon thousands of electrical illuminations make it impossible to see the sky clearly at night.