Philip Bagnall, an amateur astronomer, has previously been published in The Meteorite & Tektite Collector's Handbook (William-Bell, 1991), and in the 1980s and 1990s he was a regular contributor to Astronomy magazine on meteors. but he has also written on a freelance basis for various other science magazines including New Scientist, Focus, Earth, and Science PROBE! He is a former Fellow of the Royal Astronomical Society and Fellow of the Royal Meteorological Society, former member of the British Astronomical Association, the Meteoritical Society, and the British Association of Science Writers.