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About the Cover


Collage of stellar birth (lower three panels) and death (upper two panels) related to the special section beginning on p. 1350 (and the News story on p. 1336). Clockwise from upper left: Supernova SN 1987A (see Chevalier, p. 1374), planetary nebula NGC 7009 (see Weinberger and Kerber, p. 1382), the young star Ori 182-413 within a cloud (see O'Dell and Beckwith, p. 1355), the young star HH 30 (ibid.), and b Pictoris (P. Kalas and D. Jewitt). The background is a synthesized color image of the x-ray sky around Orion (Röntgen X-ray Satellite image from Max-Planck-Institut für extraterrestrische Physik, Germany, K. Dennerl, W. Voges, R. Neuhäuser). See p. 1391 for more details.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)