The Webb Space Telescope Is Already Reshaping Astronomy By JONATHAN O'CALLAGHAN In the days after the mega-telescope started delivering data, astronomers reported exciting new discoveries about galaxies, stars, exoplanets and even Jupiter. Read the article | | | | | New Number Systems Point Geometry Problem Toward a Real Solution By KEVIN HARTNETT The Kakeya conjecture predicts how much room you need to point a line in every direction. In one number system after another — with one important exception — mathematicians have been proving it true. Read the article | | Why Do We Get Old, and Can Aging Be Reversed? Podcast hosted by STEVEN STROGATZ Everybody gets older, but not everyone ages in the same way. In this episode, Steven Strogatz speaks with Judith Campisi and Dena Dubal, two biomedical researchers who study the aging process. Listen to the podcast Read the transcript | | Seeking Mathematical Truth in Counterfeit Coin Puzzles By PRADEEP MUTALIK Readers balanced logical reasoning and mathematical insights to find phony coins with a double-pan balance scale. Read the puzzle solution | | | A Massive Observation According to new observations, the heaviest neutron star is 20,000 light-years away from Earth and weighs 2.35 times as much as our sun. The record-holder owes its success to gas falling from a nearby orbiting star, reports Ken Croswell for Science News. What goes on in the hidden interiors of these dense and massive stars remains a mystery. Physicists have wondered if their cores consist of squishy and exotic "quark" matter, but new data released last year casts doubt on that model, as Jonathan O'Callaghan reported for Quanta. Look Who's Talking In the largest study of its kind, researchers proved that "baby talk" is much the same everywhere. Spanning 18 languages and six continents, the new research confirmed that adults adopt a sing-songy voice called "parentese" when singing or speaking to babies, reports Oliver Whang for The New York Times. Parentese is thought to make it easier for babies to learn language. When babies imitate the sounds they hear, they're using vocal learning — an ability possessed by only a few species, notably humans and songbirds. In 2018, researcher Erich Jarvis chatted with Jordana Cepelewicz for Quanta about his work on vocal learning in songbirds and why it could help reveal how the human capacity for language evolved. | | | |