Ancient sloths came in a variety of sizes Diego Barletta A cooling, drying climate turned sloths into giants – before humans potentially drove the huge animals to extinction. Today’s sloths are small, famously sluggish herbivores that move through the tropical canopies of rainforests. But for tens of millions of years, South America was home to…
How Much Ultraprocessed Food Do You Eat? Blood and Urine Record It A new study suggests blood and urine samples could provide an objective measure of diets and help unravel their connections to disease By Smriti Mallapaty & Nature magazine Diets rich in industrially manufactured food have been associated with several health conditions. Molecules in…
Some of the lab equipment needed to trap laser-cooled atoms Endres Lab Extremely cold atoms have been connected into a state of quantum “hyperentanglement” for the first time. This demonstrates a new level of control over their quantum properties, which could prove useful for quantum computing. When cooled to temperatures very close to absolute zero…
Senior physics writer Emily Conover has a Ph.D. in physics from the University of Chicago. She is a two-time winner of the D.C. Science Writers’ Association Newsbrief award and a winner of the Acoustical Society of America’s Science Communication Award.
During a briefing from the Oval Office this week, President Donald Trump revealed his administration’s plan for “Golden Dome”—an ambitious high-tech system meant to shield the U.S. from ballistic, cruise and hypersonic missile attacks launched by foreign adversaries. Flanked by senior officials, including Secretary of Defense Pete Hegseth and the project’s newly selected leader, Gen….
The orbits of a potential dwarf planet called 2017 OF201 and the dwarf planet Sedna Tony Dunn A potential dwarf planet has been discovered in the outer reaches of our solar system, orbiting beyond Neptune. Its presence there challenges the existence of a hypothetical body known as Planet 9 or Planet X. Sihao Cheng at the…
The first successful human bladder transplant could offer hope for people with bladder problems. On May 4, 2025, Oscar Larrainzar, 41, became the first human to successfully receive a bladder transplant. The surgery was part of a clinical trial developed to demonstrate the feasibility of bladder transplants in patients with terminal bladder diseases. The American…
Air-Borne: The Hidden History of the Life We Breathe, by Carl Zimmer, charts the history of the field of aerobiology: the science of airborne microorganisms. In this episode, we discover the story of two lost pioneers of the 1930s: physician and self-taught epidemiologist Mildred Weeks Wells and her husband, sanitary engineer William Firth Wells. Together,…
New contact lenses can provide infrared vision olga Yastremska/Alamy Contact lenses have enabled people to see beyond the visible light range, picking up flickers of infrared light even in the dark – or with their eyes closed. The lenses contain engineered nanoparticles that absorb and convert infrared radiation – specifically, a near-infrared wavelength range of…
Penguins’ poop may be making Antarctica cloudier — and helping mitigate the regional impacts of climate change. Gases emitted from the birds’ guano are supplying key chemical ingredients to form the seeds of clouds — the tiny particles that clouds coalesce around, researchers report May 22 in Communications Earth & Environment. What penguin guano primarily…
