The fireflies' annual synchronous light show in the woods of Great Smoky Mountains National Park is something to behold. It's a sight you don’t want to miss, even if you weren’t one of the lucky ...

It begins as random flashes of greenish-yellow light in the night. And then, slowly, something incredible unfolds. A rhythm of pulsating light illuminates Great Smoky Mountains National Park. The ...

Researchers have confirmed 10 species of fireflies, also called “illumining” insects, including synchronous fireflies, blue ghost fireflies and glowworms, according to Grandfather Mountain, the ...

Fireflies at Congaree National Park flash in unision in this file photo from 2016. Only a few lucky winners get a chance to see the natural light show each year, which is currently protected by the ...