Sydney, Australia (AFP) – Hundreds of mysterious black tar-like balls have washed up on two popular Sydney beaches, prompting lifeguards to close the strands to swimmers.

“Mysterious, black, ball-shaped debris” began appearing on Coogee Beach on Tuesday afternoon the local mayor said, leaving flummoxed Australian authorities scrambling to find out what they might be, and where they may have come from.

Hundreds of golf-to-cricket-ball-sized spheres could be seen littering the coast, which is usually thronged with Sydneysiders and tourists.

Instead, a few seagulls wandered among the spheres, pecking and examining.

The balls were also spotted at nearby Gordon’s Bay, an aquatic reserve popular for snorkelling and fishing, which was also closed.

“At this stage, it is unknown what the material is,” Mayor Dylan Parker said in a social media post.

“However, they may be ‘tar balls’ which are formed when oil comes in to contact with debris and water, typically the result of oil spills or seepage.”

arb/ssy

© Agence France-Presse

Featured image credit: kjpargeter | Freepik

Image: SpaceX Falcon 9 rocket during the SAOCOM-1A mission night launch (2018)
Rocket re-entry pollution detected in upper atmosphere for the first timeScience

Rocket re-entry pollution detected in upper atmosphere for the first time

Upper atmosphere lithium spike detected Growing satellite fleets raise new concerns Regulation and long-term impacts unclear A Falcon 9 rocket re-entry has led to the…
Muser NewsDeskMuser NewsDeskFebruary 19, 2026 Full article
Illustration 3d letter blocks forming the word news
Comic book brings sponge landscapes to life in SpongeBoost projectNews

Comic book brings sponge landscapes to life in SpongeBoost project

The SpongeBoost project is using a creative approach to highlight the importance of restoring natural water retention in landscapes. Through a mix of research, best…
Muser NewsDeskMuser NewsDeskMarch 28, 2025 Full article
Still life with the scales of justice (climate,green justice, Youths sue Trump over US climate orders)
Climate activists defend ‘future generations’, appeal lawyer saysNews

Climate activists defend ‘future generations’, appeal lawyer says

Clara LALANNE | AFP London, United Kingdom - Sixteen British climate activists jailed for their high-profile protests acted for "future generations" and should have their…
SourceSourceJanuary 30, 2025 Full article