A sign is posted outside a Pennsylvania Department of Health measles vaccination clinic located in Lancaster County in Peach Bottom, Pa., Tuesday, Oct. 20, 2026. Matt Rourke/AP hide caption toggle caption i Matt Rourke/AP The U.S. is grappling with its worst resurgence of measles in decades, with cases particularly high in the state of Pennsylvania.
A blanket of toxic haze is enveloping parts of Indonesia and spreading into Malaysia, Singapore and the Philippines, as weeks-long wildfires continue to burn. Millions of people across large swathes of South East Asia have been exposed to the smog, which in some areas has fuelled “acutely unhealthy” pollution more than 15 times the World
Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy. You may unsubscribe at any time. Hikers exploring the
Parasitic illness cases in 15 states have been linked to iceberg lettuce, U.S. health officials said Wednesday. Cyclospora cases have been reported in at least 47 states this year, and investigators have continued to probe how many could be linked to a common contaminated source. The Centers for Disease Control and Prevention said the number of states tied