It’s widely understood that tattoos are permanent, but a recent study in the Journal of Experimental Medicine has found they are also ever-changing. French scientists have discovered that ink crystals are in fact “continuously engulfed, regurgitated and gobbled back up” by a body’s cells. These cells, known as macrophages, work as part of the immune system to swallow harmful, foreign junk. Read much more about …
1. Amateur Astronomer Photographs Exploding Star An Argentinian amateur astronomer was simply testing out his new 16-inch telescope by taking a bunch of short-exposure photographs when he managed to snap an image believed to be one in 10 million—or even one in 100 million. The photo is of an exploding star in a distant galaxy—a visual that professionals have been hoping to capture for a …
In a discovery that has “pushed back evidence for tattooing in Africa by over 1,000 years,” researchers at the British Museum have found the world’s oldest tattoos on 5,000-year-old mummies. These figurative tattoos resemble letters and animals; the female mummy has four small S-shaped designs on her right shoulder. The male’s tattoos (on his upper arm) resemble a wild bull and a sheep. These are …
