Analysis reveals composition of mysterious black balls on beaches

• "Mysterious black balls" close 2 popular beaches in Australia

  Top stories - CBS News - October 16
• 

  Second Sydney beach closed as mystery deepens after hundreds of black balls wash ashore in Coogee

  World - The Guardian - October 16
• 

  Sydney reopens beaches after thousands of mysterious tar balls washed ashore

  Top stories - BBC News - October 19
• 

  Sydney beaches shut over mysterious tar balls washing ashore

  Top stories - NBC News - October 17
• 

  Mysterious black debris in Sydney was not tar balls but 'much more disgusting' waste

  Top stories - NBC News - 4 hours ago

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