An enduring problem with today’s generative artificial intelligence (AI) tools, like ChatGPT, is that they often confidently assert false information. Computer scientists call this behavior “hallucination,” and it’s a key barrier to AI’s usefulness.  Hallucinations have led to some embarrassing public slip-ups. In February, AirCanada...

LONDON — Two climate protesters were arrested Wednesday for spraying orange paint on the ancient Stonehenge monument in southern England, police said. The latest act by Just Stop Oil was quickly condemned by Prime Minister Rishi Sunak as a “disgraceful act of vandalism.” The incident came just a day before thousands are expected...

(LISLE, ILL.) — With their bulging red eyes and their alien-like mating sound, periodical cicadas can seem scary and weird enough. But some of them really are sex-crazed zombies on speed, hijacked by a super-sized fungus. [time-brightcove not-tgx=”true”] West Virginia University mycology professor Matt Kasson, his 9-year-old...

African-American heroines are everywhere in U.S. history — though they were often unseen by contemporaries. Sometimes, they simply hid.   Juneteenth is a fitting occasion to celebrate one woman who did just that: Renee Messelin was a member of the first unit of American women soldiers who served in World War I. Yet her full identity...

The first debate of the U.S. presidential election, featuring President Joe Biden and Donald Trump, former President and current Republican nominee, will take place on June 27. This comes after the Biden campaign proposed an unusually early date for a debate. The second debate will take place on Sep. 10. [time-brightcove not-tgx=”true”]...

WIMBLEDON, England — Former Grand Slam champions Naomi Osaka, Caroline Wozniacki, Angelique Kerber and Emma Raducanu have all been awarded wild cards for Wimbledon. The grass-court tournament starts on July 1. Osaka — a four-time major champion and former No. 1 player — and three-time Grand Slam winner Kerber returned from...