Resources

Account for the cosmological red shift in terms of the expansion of the universe since the radiation was emitted.

Have you ever wondered what causes mirages, how lenses can focus light, or why your feet look closer and bigger in a pool of water than you know they are? This concept, known as refraction (Snell’s Law) is investigated using experimental video data.

Studying the Universe requires the use of a huge range of scales. This often means using new units – especially for distances and masses. This lesson plan will explore these new unit systems.

Explore the lifecycle of stars, using an interactive web-app showing animations of how stars change over the course of their lives.