Mirror, Mirror
In this activity, students test the Law of Reflection based on experimental evidence.However, the back-silvered glass mirrors present a twist. […]
Why are many observatories located on mountaintops?
Almost all of the world’s finest ground-based observatories are located on mountains, for a variety of reasons. First and foremost,
Why are many observatories located on mountaintops? Read More »
Why aren’t stars visible in the daytime?
Stars aren’t visible during the sunlit hours of daytime because the light-scattering properties of our atmosphere spread sunlight across the
Why do stars twinkle?
Because stars are so incredibly distant, to our eyes they appear strictly as points in the night sky. Irregularities in