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...et al Audio and video Intoduction: Video: courtesy of NASA, ESA, and G. Bacon (STScI) 2.1.6 Birth of a star: Video: courtesy of Institute of Physics 2.3 The death of a star: Video: courtesy of Institute of Physics http://www.iop.org/ 2.3.3 Beautiful Supernovae: Video: © The Open University 2.3.5 Supergiant stars: Video: courtesy of Institute of Physics

...article, David Rothery discusses two pieces of research published in 2017, which suggest pushing the date slightly earlier and modifying the mechanism to a series of slightly smaller ‘giant impacts’ in place of a single Moon-forming giant impact. Multiple impacts to make the Moon? A blog by an Open University PhD student examining alternative hypotheses...Week 1: What...

...article reprinted in Box 1 indicates the extent of the political unrest with a system that left families relying on food parcels, and that has been variously described as being ‘in chaos’ and ‘shambolic’. Such problems have become a familiar story and the steady stream of failures seems destined to continue into the future. During the same period a committee of...