Is This the Oldest Cave Art on the Planet?

[Smithsonian]  In the Australian science magazine Cosmos, Elizabeth Finkel reports on her journey to a rock formation in the northern part of the country that could very well be the site of the world’s oldest art. Underneath a massive rock slab which rests on dozens of narrow stilts, researchers have found the world’s oldest stone axe, and a vast collection of painted artwork. Finkel describes the site, which is known as Gabarnmung: "Like the Sistine Chapel, the ceiling of the expansive rock shelter was a mural of breathtakingly vivid and bold works of art – hundreds of them. And the paintings extended up and down 36 remarkable sandstone columns that, like the pillars of a temple, appeared to support the cave."