When Lior Shamir, a scientist at Kansas State University, examined images from the James Webb Space Telescope Advanced Deep Extragalactic Survey (JADES), he saw something quite unexpected. The majority of the 263 galaxies he observed rotated in the same direction — with two thirds spinning clockwise, Shamir reported in the Monthly Notices of the Royal Astronomical Society. Why is this significant? In a random universe, galaxy rotations should be roughly split in two directions. The fact that t ...read more
Back in the 1940s, a Dutch physician called John Poel invented a device that changed the nature of heart monitoring. His device is based on the idea that the color of skin changes according to the amount of blood it contains. That’s easy to see in the way people quickly become red faced when exerting themselves,But it turns out more subtle color changes occur at rest as the heart pumps blood around the body. The ebb and flow of blood through capillary vessels changes the amount of light reflec ...read more
Perspectives on aging vary greatly by culture, with Western societies often associating youthfulness with health and success. While aging is a natural process, it is linked to numerous health issues, driving scientific efforts to better understand its mechanisms. At the molecular level, aging results from the accumulation of cellular damage, leading to physical and cognitive decline, increased disease risk, and ultimately, death.Researchers have long known that telomeres — the protective caps ...read more
It seems appropriate that research started at one university and finished at another describes the rare interactions of twin stars.A graduate student, tantalized by mysterious radio pulses from the Milky Way, set her sights — and several telescopes — on finding the source of the strange signals. The bursts of sound were especially unusual because they would last from tens of minutes to hours. Radio pulsars, by comparison, produce much shorter signals — often mere seconds.Multiple kinds of ...read more
The venom of the male blue-lined octopus is made for its predators, its prey, and, apparently, its mating partners. That’s what researchers from the University of Queensland in Australia found after observing the males of the species sedating the females with venom prior to mating. “Injecting the females renders them immobile,” the researchers wrote in a March Current Biology report, “allowing the males to mate successfully.” Read More: The Tiny Blue-Ringed Octopus Is Iridescent and De ...read more
Author Vishay SinghPosted on Categories Discover Magazine