When hundreds of golf ball-sized black balls mysteriously washed onto the beaches of Sydney, it caused enough alarm for the ...
The contents of the 'black balls' that washed up on Sydney, Australia beaches last month have been identified after weeks of ...
Testing by chemists has determined the balls were most likely the result of a sewage spill, though their exact origin remains ...
Weeks after sticky black balls washed up on the famed beaches of Sydney, Australia, scientists say they have partly solved ...
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