A new paper proposes that the universe's first stars were about as different from twinkling, sunlike stars as you can get. These "dark stars," it argues, were fueled by huge globs of annihilating dark matter and seeded the galaxies we see today.Strange as they are, such stellar bodies explain one of the newer mysteries in astronomy.In December 2022, the James Webb Space Telescope identified three ancient galaxies as part of its JWST Advanced Deep Extragalactic Survey (JADES). These distant, deep ...read more
This article was originally published on Nexus Media News.Duke Riley started out making maritime crafts, like sailor’s valentines and scrimshaws, entirely out of shells, bones and other natural materials that washed ashore on the beaches of Cape Cod, Massachusetts and greater New York. Then, on a walk in 2017, he picked up what he thought was a piece of bone. Upon closer inspection, he realized it was a plastic brush used for scrubbing boats. The moment marked a turning point in his practi ...read more
Ancient Egyptian painters produced some of the most recognizable art of ancient times. Yet, even for their exactitude and memorable iconography, they sometimes made an oops and had to paint a do-over, according to a new study that scanned ancient paintings using X-ray imaging.The paper by researchers from France, Belgium, Egypt and the U.S. aimed a macro X-ray fluorescence imaging (XRF) machine at two paintings to analyze revisions made to them and what they mean. Read More: The Mummification Pr ...read more
Dogs may be known as man’s best friend, but they can also form close bonds with members of their own species – and even grieve the death of their canine companions.A 2022 study of 426 pet dogs found that following the death of a household dog, the surviving dog often exhibited behavior changes. Increased “attention seeking” topped the list, as well as lethargy, fearfulness, decreased appetite and more vocalization. “Do dogs grieve the passing of another dog? Some do, but not all of th ...read more
Antihistamines like diphenhydramine — the active ingredient in Benadryl, Tylenol PM and many cold medicines — are prescribed and sold over the counter to combat allergic reactions, dry up congestion and aid sleep. While these drugs are useful, they also leave users feeling confused, sleepy and dizzy. This much is apparent from the inside sticker on a bottle of Benadryl tablets, which warns that “drowsiness may occur” and to “be careful when driving a motor vehicle.” However, another, ...read more
Author Vishay SinghPosted on Categories Discover Magazine
