Source of mysterious space balls found washed up on beach revealed after probe by space agency

The ASA said this morning that the objects 'appear to be pressure vessels from a space launch vehicle'

The Australian Space Agency (ASA) has said it has "identified the likely source" of half a dozen mysterious silver spheres found washed up on beaches in Australia.

The objects, which appeared as big chrome balls, were discovered near Forrest Beach in northern Queensland, roughly 80 kilometres north of Townsville, over the weekend.

The ASA said this morning that the objects "appear to be pressure vessels from a space launch vehicle", working with international authorities to formally confirm the specific craft of origin.

According to the ASA's latest statement, "the objects' location and characteristics are consistent with debris from a foreign rocket body that recently re-entered the atmosphere from orbit".

Authorities were first alerted on Friday afternoon following reports of the initial piece of debris washing ashore, with Queensland Fire Department personnel locating a total of six objects by Sunday.

Queensland's fire department erected a 50m exclusion zone in the vicinity, urging anyone who found a suspicious object in the area not to touch them - but rather move away and call the emergency services.

Associate Professor Alice Gorman, a space archaeologist and expert on orbital debris at Flinders University, initially noted an absence of burn marks or scorching on the surface of the objects, initially suggesting the spheres originated from a rocket stage.

Online speculation proposed the spheres could contain residual amounts of a highly flammable or reactive substance, described by Professor Gorman as "pressurised fuel vessels made of titanium alloys with a very high melting point".

The so-called "space balls" make up parts of spacecraft that can surface years after a launch, but may retain traces of hydrazine – an extremely toxic propellant used in rockets.

Hazmat-adorned responders contained the objects in drums by Sunday and warned that additional debris might appear along the coastline in the coming days.

Forrest Beach Takeaway owner Lisa Scobie said the local community of some 2,500 residents was keen to know the origin of the objects.

"It's very quiet, not a lot happens here. So having a lot of extra activity, that definitely created a little bit of excitement," she told ABC.

The discovery would not be the first time space debris has appeared on Australian shores.

Following a series of similar recoveries over recent decades, Western Australia saw fragments from the Skylab space station land in 1979, whilst a SpaceX Dragon trunk was located in New South Wales in 2022.

Last year, India's space agency confirmed a massive metal dome discovered on a Western Australian beach near Perth originated from one of its Polar Satellite Launch Vehicles.

A comparable spherical object was also recovered from grassland in Namibia in 2011, with specialists determining it was probably a fuel container holding hydrazine from an unmanned rocket.

Meanwhile, the local Forrest Beach Takeaway has embraced the unusual event, offering a "space junk snack box" with signage noting that customers would actually be able to identify those particular objects.