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Science 15 October 1999:
Vol. 286. no. 5439, pp. 425 - 426
DOI: 10.1126/science.286.5439.425
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Perspectives

ASTROPHYSICS:
The Complexity of Stellar Death

Yervant Terzian

The death of a small star--such as our sun--was long believed to be accompanied by formation of a smoothly expanding nebula. Now, dozens of spectacular images of planetary and protoplanetary nebulae provided by Hubble Space Telescope have revealed morphological aspects completely unsuspected before. The newly found complexity represents a challenge for researchers trying to understand the mechanisms of stellar death.

The author is at the David C. Duncan Professor in the Physical Sciences in the Department of Astronomy at Cornell University, Space Sciences Building, Ithaca, NY 14853, USA. E-mail: terzian{at}astrosun.tn.cornell.edu

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