Discover the oldest abstract drawing, a 73,000-year-old ochre design found in Blombos Cave that reflects ancient human cognition. It's a flake split from a larger piece of silcrete — a rock made from ...

It’s a symbol used by many people on a daily basis, and now scientists believe they may have found the origin of the hashtag. Researchers have discovered a drawing on rock in South Africa that dates ...

Scientists have found the oldest known drawing in history -- and it looks #familiar. The 73,000-year-old red cross-hatch pattern looks just like a hashtag, also recognizable as the US pound sign, the ...

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Leslie Katz led a team that explored the intersection of tech and culture, plus all manner of awe-inspiring science, from space to AI and archaeology. When she's not smithing words, she's probably ...