Curated OER
What is Retrograde Motion
In this retrograde motion worksheet, learners draw a diagram of the night sky by connecting dots to show retrograde motion. They compare retrograde motion to an optical illusion and answer questions about both.
NASA
Taking a Cold, Clear Look at the Universe
Take a look with another perspective. Pupils read to find out what portion of the electromagnetic spectrum a space telescope sees and the difficulties of viewing infrared radiation from other objects in space. Individuals discover how...
Curated OER
A Star Sheds a Comet Tail!
In this comet tails and stars learning exercise, students read about the star Mira and the vast clouds of gases it emits. They use a photograph from the Galaxy Evolution Explorer satellite to solve 5 problems about the scale of the...