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Nature 390, 555-556 (11 December 1997) | doi:10.1038/37478

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Stellar astronomy:  Clocks within the hourglass

Mario Livio1

Rarely in astronomy can a stellar cataclysm be predicted in advance. It is also rare that an extremely well-studied object suddenly reveals a previously undetected periodicity.

  1. Mario Livio is at the Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, Maryland 21218, USA.