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While we鈥檙e still gazing skywards, check out these two from Harvard University Press: A Thin Cosmic Rain (拢11.95/拢17.95) by Michael Friedlander on the trail of cosmic rays that bathe the Earth. The other, Nearest Star (拢11.50/$16.95), is about the Sun itself. Leon Golub and Jay Pasachoff guide you through the techniques for studying the Sun. Farther afield, Marcus Chown鈥檚 The Universe Next Door (Headline, 拢7.99) tackles ideas at the edge of science, the ones with the 鈥渨ow鈥� factor.