August 7, 2008 - NewScientist
Astronomers have detected signs of a clockwork-like dimming of the bright star Eta Carinae months earlier than expected, although they can't yet explain why. They suspect the dimming is caused by a hidden stellar companion that disrupts Eta Carinae whenever it comes near.
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The next event is set to occur at the beginning of January 2009, but astronomers report they have already caught the first glimpse of new activity using the Gemini Observatory in Chile.
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