In southern Mexico, remote sensing technology has recently provided a snapshot of a 15th century archaeological site in its heyday, revealing a bustling city built by the pre-Columbian Zapotec culture. The site, known as Guiengola, was initially thought to be a fortress occupied by soldiers, but one researcher has found that it was actually an entire city complete with a network of internal roads and amenities like temples and ballcourts. The updated perspective of Guiengola, featured in a Nove ...read more

Centuries of votive offerings cast into a lake in Denmark and other archaeological discoveries have revealed that barbarian warriors may have indulged in psychotropic drugs to stimulate themselves during battle against the Romans and other enemies.These warriors may have used small spoons — dozens of which have been discovered attached to Barbarian belts — to ingest or measure magic mushrooms, an organic precursor for LSD or other substances.“The lack of fatigue or inhibition, and the mobi ...read more

Most of us hope we’ll be healthy into our late 80s or early 90s and then die peacefully in our sleep, preferably after a wonderful evening with loved ones. But that’s rarely the way it works out. All too often, our later years are plagued with ill health. Life expectancy has been steadily increasing throughout the world since 1900, but “those gains have not been matched by equivalent gains in health,” says Armin Garmany, a researcher who studies regenerative medicine at the Mayo Clinic. ...read more

An asteroid carrying some of the basic building blocks of life has been reported in the journal Nature Astronomy. This finding opens the possibility that life on Earth could have been seeded by chemicals in the cosmos billions of years ago.“Asteroids provide a time capsule into our home planet’s history, and Bennu’s samples are pivotal in our understanding of what ingredients in our solar system existed before life started on Earth,” Nicky Fox, a NASA official, said in a news release. � ...read more

Although Mars is known for being a dry and desolate desert, its landscape hasn’t always been so hostile. Rivers and lakes were once present on the Red Planet before it began to dry up somewhere around 3 billion years ago. The latest research has explored evidence from this distant chapter of Mars’ past, revealing ancient sources of water in the Gale crater region that evaporated and left behind wave ripples. Researchers have investigated these geological clues in a recent study published in ...read more

According to a recent study published in Science Advances, a greasy hair day keeps the ice away — for polar bears, that is. After examining polar bear fur, an international research team identified what helped keep polar bears ice-free, even in sub-zero temperatures. It all comes down to their greasy fur. “This work not only represents the first study of the composition of polar bear fur sebum, but it also resolves the question of why polar bears don’t suffer from ice accumulation,” sa ...read more

Tropical lowlands that flood during the rainy season and scorch during the sunny season don’t exactly sound ideal for agriculture. But the people who lived in what is now Bolivia between 500 A.D. and 1400 A.D. turned those conditions to their advantage by engineering a system of canals to divert excess water and ponds to save it for later. By building a sophisticated irrigation network, the pre-Hispanic Casarabe society of the Llanos de Moxos produced maize year-round — ushering in a Neolith ...read more

Climate change is wreaking havoc across the globe, upending weather patterns and the Earth’s hydrological cycle with often dramatic effects on some of the largest water bodies. 2024 was the hottest year on record, and there are concerns that these pressures on the Earth’s water system are likely to increase as the climate crisis continues.One classic example is the Aral Sea. Once one of the largest lakes in the world, it has shrunk to only a fraction of its size. “In 2016, this lake was le ...read more

A sleeping giant of a volcano is stirring in its underwater bed.The volcano, tucked underneath a submerged peak called Axial Seamount, is the most active volcano in the Pacific Northwest. Seismic activity, including hundreds of small earthquakes a day, indicate an eruption may be forthcoming — perhaps by the end of 2025, according to a blog kept by Bill Chadwick, a volcanologist who’s been closely monitoring activity associated with Axial Seamount, for years.Volcano Wake-up TimeThat seismic ...read more

A feeling of relaxation. An altered sense of time and space. A slowed reaction time. These effects are all associated with cannabis, but what else do we understand about the drug’s effects on the brain? Investigating the impacts of the drug, recent research in JAMA Network Open has revealed that heavy cannabis use is associated with reduced brain activity during working memory tasks. Representing the largest of any such study so far, the research indicates that the negative outcomes that are l ...read more