The Wilkinson Microwave Anisotropy Probe (WMAP) was a spacecraft operating from 2001 to 2010 which measured temperature differences across the sky in the CMB radiation.
State what the 'B' in CMB radiation stands for.
53 exam-style questions on Edexcel GCSE Physics 7.2 The Universe and red-shift, covering 7.2.1 Big Bang and Steady State theories, 7.2.2 Evidence for the Big Bang, 7.2.3 The Doppler effect and red-shift, 7.2.4 Red-shift as evidence for an expanding Universe, and 7.2.5 The CMB and the accepted model. Each one has a worked solution and a mark scheme showing where the marks go.