The Planck space observatory, operated by the European Space Agency (ESA) from 2009 to 2013, mapped the temperature fluctuations of the CMB radiation with high precision to provide crucial data about the early Universe.
State what the 'C' in CMB radiation stands for.
53 exam-style questions on Edexcel GCSE Physics 7.2 The Universe and red-shift. Each one has a worked solution and a mark scheme showing where the marks go.