Firefly season peaks in July. Here’s where to spot them in and around Philadelphia — and why you may be seeing more of their ...

Photuris pensylvanica — better known as the Pennsylvania firefly or, as most Philadelphians call it, the lightning bug — is out in full force this summer. Reports that central and rural parts of the ...

Philly's summer muggy weather is historic. We're seeing more fireflies around, so here's where to find lightning bugs, and a ...

Beatriz Swanson can remember the first time she saw the blinking glow. She was 10 years old, growing up in Mexico, when two ...

The global firefly population is on the decline, but a scientist at Michigan State University said she has seen more fireflies in Michigan this year.

For Star subscribers: A small population of native synchronous fireflies has been documented for the first time at Saguaro National Park, much to the delight of bug experts.

Learn more about how some firefly species may use pheromone receptors along with bioluminescence to attract partners.

Firefly Aerospace will send up its Blue Ghost lunar lander carrying nearly a dozen experiments from space agencies, companies and universities to discover more secrets about the moon.

As some fireflies face challenges from climate change and habitat loss, little changes can make a big difference.

As some fireflies face challenges from climate change and habitat loss, little changes can make a big difference.