Ancient Egyptian Pigment Now Used in Molecular Biology

The bright and striking pigment known as Egyptian Blue (or calcium copper silicate) was invented 5,000 years ago but continues to fascinate, now through the scientific insight it provides. The pigment (most famously featured on the Bust of Nefertiti, 1345 BC) has proven itself useful in biology research, as nanoscale mineral sheets of it essentially light up molecular imaging. A description of an imaging experiment …

Link About It: This Week’s Picks

Putting excess London Underground heat to use, an app for analog photography, a 2,000-year-old sarcophagus and more

NASA’s Highest-Resolution Photo of Mars NASA’s new image of the surface of Mars—the space agency’s highest-resolution photograph of the Red Planet ever—comprises 1,200 total images. The wide-pan photograph features what researchers hypothesize are former sites of lakes and streams that dried up over the course of several billion years. The 1.8-billion-pixel shot was taken by the Curiosity Rover during November and December of 2019 and …

43,900-Year-Old Cave Art Depicts Ancient Hunting Scene

Predating the next oldest depiction of a human/animal hunting scene by 4,000 years, this 43,900-year-old scene painted on cave walls on Sulawesi (an island in central Indonesia) is now believed to be the oldest—and includes one of the most complex discoveries yet. It reshapes our long-held conceptions about the practice of hunting by depicting therianthropes, predominantly human figures with a distinguishing animal feature. In this …