Lab-Grown Monkey Embryos Reveal in 3-D How Organs Begin
At 25 days old, these specimens could be the oldest primate embryos ever grown outside the wombA 25-day-old monkey embryo stained with fluorescent dyes (multicolored). Blue denotes cell nuclei; the dense central patch of green and red marks trophoblasts, cells in the embryo’s outer layer. Credit: Zhai et al./CellScientists have cultivated monkey embryos in the laboratory long
Here’s How to Use Dreams for Creative Inspiration
The structure of benzene, Google and Frankenstein: What do these icons of science, technology and literature all share? They are among the numerous discoveries and inventions that are said to have been inspired through the act of dreaming. For decades sleep scientists have mulled over the link between dreaming and creative inspiration. They have long
Science News Briefs from around the World: May 2023
Mistaken fossil identity in India, decrypted letters of an imprisoned Scottish queen, marsupials seeking marsupials Down Under, and more in this month’s Quick Hits Credit: NASAAUSTRALIA Male quolls, endangered Australian marsupials, die after one mating season—and new research using radio trackers shows why. Scientists found the quolls sacrifice sleep and travel long distances to find
Physicists Create Biggest-Ever Schrödinger’s Cat
Credit: 101cats/Getty ImagesA sapphire crystal weighing 16 micrograms is the largest object ever to exist in a quantum-mechanical superposition of two vibrational states. Matteo Fadel and his colleagues at the Swiss Federal Institute of Technology in Zurich (ETH Zurich) excited the crystal into vibrations such that its atoms oscillated back and forth simultaneously and in
Astronomy Tool Can Now Detect COVID in Breath
A versatile tool called an optical frequency comb can detect the signatures of diseases such as COVID in exhaled breath. Credit: Jasmina81/Getty ImagesAstronomers and physicists have long used a laser-based sensor called an “optical frequency comb” to study the material makeup of the cosmos and to make timekeeping more accurate. But the COVID pandemic has
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