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Discoveries
Historic Sulfur Emissions Linked to Porosity in Murujuga Rock Art
A three-year monitoring program in Western Australia identifies historic sulfur dioxide emissions and resulting acid rain as the strongest explanation for increased porosity in rock surfaces near industrial areas of Murujuga. Researchers say current pollution has not been shown to accelerate deterioration, while further work will examine microbial and atmospheric factors.
Sep 1, 2026
Discoveries
Giant Rainbow Serpent Paintings Marked Upheaval in Arnhem Land, Study Says
A study of rock art in Australia’s Awunbarna region documents unusually large depictions of Rainbow Serpents and other powerful beings, including a serpent more than 6 meters long. Researchers argue the post-contact images may have helped Aboriginal communities reinforce traditions and connections to country during rapid colonial change.
Sep 1, 2026