Calcium in our Bones + Teeth was Created by Exploding Stars

Reinforcing the often-shared sentiment that we are all made of stars (popularized by astronomer Carl Sagan), a new study published in The Astrophysical Journal posits that half of the calcium found in the known universe—including inside human bones and teeth—originated from stars exploding in supernovas. An international team of nearly 70 scientists collaborated on the findings, after an observation of an “anomaly” by amateur astronomer Joel …

Link About It: This Week’s Picks

Revisited lunar reportage, Wes Anderson-inspired sunglasses, the tale of disco's revenge and more in our roundup of the web

Elena Tamburini’s Touch-Encouraging Furniture Inspired by sex as taboo, especially among older people, Italian designer Elena Tamburini created Filotea—a collection of furniture that encourages physical affection whether solo or with another individual. The range includes several standout pieces: Otello is a mirror surrounded by feathers, which allows the user to caress their own face, and the Filomena is a body brush that stimulates the skin. …

How Human Voices Affect Wild Animals

Humans are super-predators—even when we’re not actively behaving as such. A recent study conducted in an English forest documented the reactions beavers had to the sound of wolves, bears and humans. While they ignored the wolf sounds and were “mildly concerned” by the sound of a bear, the beavers were “profoundly disturbed” by the sound of human speech. A different study played human speech in …