Queensland Fire and Emergency Services received a report on the afternoon of 3/7 about multiple large spherical metal objects washing ashore on Forrest Beach, located about 80 km north of Townsville.

Local authorities immediately closed the beach to collect and examine these mysterious spheres. They established an exclusion zone around the site, while specialized teams in protective gear retrieved the spheres and placed them into hazardous material containers under police supervision.

"If you discover any suspicious objects in the area, do not attempt to touch them. Move away and call the emergency hotline," Queensland Fire and Emergency Services warned residents.

The beach is near Forrest Beach village, home to about 2,500 people, and the news of the mysterious spheres washing ashore put villagers on high alert.

One of the black spheres that washed ashore on Forrest Beach on the night of 3/7. *Photo: Queensland Fire and Emergency Services*

On 6/7, the Australian Space Agency (ASA) issued a statement indicating that the location and characteristics of the spheres suggested they were likely pressure vessels from the fuel system of a space launch vehicle. This component separates and re-enters the atmosphere after being launched into space.

ASA is coordinating with international partners to precisely identify the rocket type and launching nation.

According to Associate Professor Alice Gorman, an expert in space archaeology and space debris at Flinders University, these spheres are commonly known as "space balls." They are pressure vessels made from titanium alloy, which has a very high melting point, allowing them to often remain intact after re-entering the atmosphere.

Close-up of a black sphere, suspected to be space debris, washed ashore on an Australia beach. *Photo: Queensland Fire and Emergency Services*

"The objects' surfaces show no signs of scorching, suggesting they might belong to the first or second stage of a rocket, separating before the rest of the rocket continues to carry its payload into space," she said.

Gorman also noted that these vessels might still contain residual hydrazine, a rocket fuel that can be harmful to human health if directly exposed.

Australian authorities warned residents not to move or independently collect any objects suspected to be space debris, but instead to report them to the authorities.

Resident Trevor Kyle, who assisted police in accessing the area where the first sphere was found, stated that many initially thought they were just buoys or equipment from boats. However, authorities later deployed bomb disposal units, fire, and emergency rescue services to the scene due to concerns that they could be hazardous objects.

Location of the beach where the black spheres washed ashore. *Graphic: Abc.net.au*

As the number of rocket launches worldwide increases, instances of space debris falling to Earth or washing ashore will become more frequent.

This is not the first time Australia has discovered space debris washed ashore. In 2023, India confirmed a giant metal block found on a beach in Western Australia was a component of one of its rockets. A similar spherical object was also found in Namibia in 2011 and was believed to be a hydrazine fuel tank from a space rocket.

Thanh Danh (According to ABC, BBC, News.com.au)