Human semen not only accumulates genetic mutations with age; as the percentage of sperm carrying potentially serious mutations increases, so does the risk of developing diseases in offspring. This is according to a
Meghan Rosen is a senior writer who reports on the life sciences for Science News. She earned a Ph.D. in biochemistry and molecular biology with an emphasis in biotechnology from the University of
Easter Island statues, traditionally known as moai on the remote island of Rapa Nui in the South Pacific, are some of the most impressive artifacts of ancient Polynesian civilization. How the statues were
The National Transportation Safety Board confirmed Sunday that it is investigating an airliner that was struck by an object in its windscreen, mid-flight, over Utah. “NTSB gathering radar, weather, flight recorder data,” the
Duping a guppy is easier than duping a ring dove — at least when it comes to a classic optical illusion. In the Ebbinghaus illusion, two identical circles placed side by side are
Ultra-endurance athletes triumph over staggering distances and harsh conditions. But one of their toughest foes may be their own metabolic ceiling. By scrutinizing a group of top-tier long-haul athletes, scientists have now helped
In the early 2010s, nearly every STEM-savvy college-bound kid heard the same advice: Learn to code. Python was the new Latin. Computer science was the ticket to a stable, well-paid, future-proof life. But
Nancy Shute is editor in chief of Science News Media Group. Previously, she was an editor at NPR and US News & World Report, and a contributor to National Geographic and Scientific American.
Carly Kay is the Fall 2025 science writing intern at Science News. She holds a bachelor’s degree in communication from the University of California, Santa Barbara and a master’s degree in science communication from the
Citations A. Topiwala et al. Alcohol use and risk of dementia in diverse populations: evidence from cohort, case-control and Mendelian randomization approaches. BMJ Evidence-Based Medicine. Posted September 23, 2025. doi: 10.1136/bmjebm-2025-113913 L. Said. U.S.
