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Science 10 October 1997:
Vol. 278. no. 5336, p. 222
DOI: 10.1126/science.278.5336.222
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Research News

ASTRONOMY:
Probing a Star's Heart of Crystal

Govert Schilling

Researchers have identified a pulsating white dwarf star, called BPM 37093, as an ideal laboratory for studying how material inside white dwarfs crystallizes as they age. Depending on what the researchers find, some stellar ages may have to be revised upward, from 9 billion to 11 billion years or so, which could spell trouble for cosmologists, who believe the universe as a whole is only about 11 billion years old.

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