Answer the following question about expanding Universe.
1. Describe the mechanism of a Type 1a supernova, explain how these have been used to
construct a "Hubble diagram" that extends to large redshifts, and describe what we learn
from it. [5 marks]
2. Does our understanding of the expanding Universe imply that some objects are receding
from us faster than the speed of light? Explain your answer. [3 points]
3. Describe the likely long-term fate of the Milky Way galaxy. [2 marks]
