60-Second Earth

The common food additives altered mice microbiomes to encourage gut inflammation and overeating. Dina Fine Maron reports  

National Park Service researchers recorded ambient sound from all over the country to find out where there’s still stillness. David Biello reports

Although clinical guidelines assume just two years for hot flashes and night sweats, a large study finds a median symptom duration of more than three times that length. Dina Fine Maron reports   

Life thrives even deep inside Earth and scientists are beginning to suspect extensive connections among those underground environments. David Biello reports

High-tech pedometers do a decent job of counting steps accurately. Dina Fine Maron reports.