Thousands of mysterious black balls that washed ashore and closed a stretch of popular Australian beaches ... end up sticking together. Eight beaches in Sydney were closed for several days in ...

began appearing on beaches in Sydney last month Brook Mitchell/Getty The composition of the mysterious balls that washed up on the shores of Australia last month has been revealed — and ...

When thousands of foul-smelling "black balls" washed up on Australian beaches, many were perplexed, including scientists and government agencies. Now, weeks later, the contents of the obscure balls ...

When thousands of foul-smelling "black balls" washed up on Australian beaches ... The black balls spotted on Sydney beaches are comprised of "fatty acids, petroleum hydrocarbons, and other ...