Heat waves like the one that engulfed parts of parts of the South and Midwest and killed more than a dozen people are becoming more common, and experts say the extreme weather events, which claim more lives than hurricanes and tornados, will likely increase in the future. A heat dome that pressured the Texas power grid and killed 13 people there and another in Louisiana pushed eastward Thursday and was expected to be centered over the mid-South by the weekend. Heat index levels of up to 112 degrees (44 Celsius) were forecast in parts of Florida over the next few days. Eleven of the heat-related deaths in Texas occurred in Webb County, which includes Laredo. The dead ranged in age from 60 to 80 years old, and many had other health conditions, according to the county medical examiner. The other two fatalities were Florida residents who died while hiking in …

In the northern Indian state of Himachal Pradesh, women are crafting products from pine needles as part of an initiative that aims at providing them with livelihood opportunities while reducing the risk of forest fires. Anjana Pasricha reports on one project in the district of Mandi. Video: Rakesh Kumar …

SYDNEY – Australia on Saturday will become one of the first countries to recognize psychedelic drugs as medicines. In February, the Therapeutic Goods Administration, Australia’s medical regulator, sanctioned use of psychedelics for some mental health conditions. Experts agree that psychedelic-assisted therapies in Australia are in their infancy. Starting Saturday, authorized psychiatrists in Australia will be able to prescribe methylenedioxy methamphetamine – MDMA, the active ingredient in such party drugs as ecstasy or molly — to treat post-traumatic stress disorder. They will also be allowed to prescribe psilocybin, a compound found in psychotropic “magic” mushrooms, to treat depression that has not responded to other therapies. Susan Rossell, a cognitive neuropsychologist at Swinburne University in Melbourne, is conducting one of Australia’s biggest clinical trials of psilocybin. Preliminary results show significant improvements in some patients’ mental health while others have shown no signs of getting better. Rossell told the Australian Broadcasting Corp. that …

ALBUQUERQUE, NEW MEXICO — A team of Italian researchers reached the edge of space Thursday morning, flying aboard Virgin Galactic’s rocket-powered plane as the company prepares for monthly commercial flights. The flight launched from Spaceport America in the New Mexico desert, with two Italian Air Force officers and an engineer with the National Research Council of Italy focusing on a series of microgravity experiments during their few minutes of weightless. One wore a special suit that measured biometric data and physiological responses while another conducted tests using sensors to track heart rate, brain function and other metrics while in microgravity. The third studied how certain liquids and solids mix in that very weak gravity. Virgin Galactic livestreamed the flight on its website, showing the moment when the ship released from its carrier plane and the rocket was ignited. The entire trip took about 90 minutes, with the plane’s touchdown on …

LONDON – One of the world’s most common artificial sweeteners is set to be declared a possible carcinogen next month by a leading global health body, according to two sources with knowledge of the process, pitting it against the food industry and regulators. Aspartame, used in products from Coca-Cola diet sodas to Mars’ Extra chewing gum and some Snapple drinks, will be listed in July as “possibly carcinogenic to humans” for the first time by the International Agency for Research on Cancer (IARC), the World Health Organization’s (WHO) cancer research arm, the sources said. The IARC ruling, finalized earlier this month after a meeting of the group’s external experts, is intended to assess whether something is a potential hazard or not, based on all the published evidence. It does not take into account how much of a product a person can safely consume. This advice for individuals comes from a …