Since 1998, observations of supernovae have suggested that distant galaxies are receding ever faster. There is still much about the universe that is not understood, for example dark mass and dark energy.
Explain how observations have shaped the current model of the universe, and why that model may change in the future.
41 exam-style questions on AQA GCSE Physics 8.2 Red-shift, covering 8.2 Red-shift. Each one has a worked solution and a mark scheme showing where the marks go.