Immune cells learn to invade tumors, and a temple beats Stonehenge by 1,000 years

Researchers at Stanford, led by John Sunwoo, found a way around that by converting natural killer cells, the immune system's fast-acting hit squad, into a "tissue-resident" form built to move into solid tissue and stay there 3. In mice, the modified cells slowed the growth of melanoma and head and neck cancers, and did noticeably better when paired with the antibody drug cetuximab, which helps guide them to their target. "It was very reproducible, very striking and very clear," Sunwoo said of how well the cells infiltrated compared to the ordinary kind.

That alone would be notable. What made the team look twice was the geometry: the entrances line up so that someone standing at the center could watch the moon reach its most extreme point on the horizon during its 18.6-year cycle, and could catch sunrise on the summer solstice and sunset on the winter one. Animal bones in the ditch suggest the entrances were once decorated with bull skulls and horns, a symbol of strength and fertility among early farming cultures across prehistoric Europe. "Circular enclosures are completely unknown in our region for this period, which already makes the site exceptional," said Petr Krištuf of the University of West Bohemia, who leads the research.

University of Pennsylvania researcher Patricio Gallardo and colleagues just ran the largest test of that question to date, using the Atacama Cosmology Telescope to examine how gravity behaves across galaxy clusters separated by hundreds of millions of light-years 10. The result, published in Physical Review Letters: gravity weakens with distance almost exactly the way Newton's inverse-square law says it should, holding up even at scales he never could have imagined measuring. "It is remarkable that the law of the inverse of the squares, proposed by Newton in the 17th century and then incorporated by Einstein's theory of general relativity, is still holding its ground in the 21st century," Gallardo said.

Between her two ruined eyes there was, oddly, just enough undamaged tissue to build one working eye. Surgeon Michele Reibaldi and a team in Turin spent six hours doing something never before attempted: transplanting the macula, the light-sensitive tissue responsible for sharp central vision, along with the cornea, sclera, and connective tissue, from her left eye into her right 218. "This procedure represents a new frontier in ocular surgery," Reibaldi said. When Elena opened her eyes afterward, she recognized her son and her dog, Joe.

Overfishing collapsed both the tuna and their herring prey after World War II, and the fishery had been effectively silent ever since. University of Exeter researcher Dr. Lucy Hawkes said a fish reaching that size is itself the proof: "Bluefin tuna are also top predators who can only be in these waters if the ecosystems underneath them are healthy." She credits years of tightly capped catch limits for the rebound.

The oldest organoids showed gene activity resembling a typical 4-year-old's brain, tracking a normal developmental timeline the whole way despite growing in a dish with no body around them. When the researchers mixed cells from older organoids with younger ones, the older cells kept maturing on schedule anyway, as if carrying their own internal clock. "It was not a given at all that our simplified model would match natural development in this many ways," said study author Irene Faravelli.

Principal Crystal Caldwell's team started with morning "safety huddles" among staff to flag brewing conflicts before they became physical, then leaned into restorative practices: a student who vandalized a hallway cleans it, rather than sitting in detention. "They need a moment of knowing it's OK to make mistakes, but knowing they can learn from it," Caldwell said. The addition that made headlines was a Harry Potter-style house system, sorting students into teams that earn points for good behavior, borrowed from British boarding schools. Last school year, the same 360-student building had 10 fights.

The pork lobby and, more recently, congressional Republicans have tried repeatedly to gut it through lawsuits and farm bill riders; the latest attempt died with the farm bill itself this year. Because producers elsewhere have to meet Prop 12's standards to keep selling into California, the law's reach has spread well past state lines: the national share of cage-free eggs rose from under 20 percent in 2018 to 45.7 percent by July 2025. Even the Association of California Egg Farmers, an industry group, has filed briefs defending it, arguing the benefits are real.