From nagging guilt, a great idea was born

April 23, 2019, 4:58 p.m. by Christian Cotroneo

Pose suggest they are 'learning to be human beings.'

April 23, 2019, 3:07 p.m. by Catie Leary

Every June, the Elkmont Ghost Town in Great Smoky Mountains National Park lights up with the world's largest gathering of synchronous fireflies.

April 23, 2019, 1:57 p.m. by Mary Jo DiLonardo

Researchers compare the carbon footprint of home cooking to kits.

April 23, 2019, 1:45 p.m. by Jacqueline Gulledge

These aerial images highlight the devastating effect global warming has on the arctic.

April 23, 2019, 10:20 a.m. by Laura Moss

From biodegradable coffins to tree-sprouting urns, eco-friendly burials offer a way for those who live green to also die green.

April 23, 2019, 9:24 a.m. by Mary Jo DiLonardo

The bobcat had set up a den in someone's backyard.

April 23, 2019, 8:13 a.m. by Cory Rosenberg

Mercury, bloodletting, radioactive water and even heroin are just some of the treatments doctors used to prescribe.

April 22, 2019, 8:38 p.m. by Bryan Nelson

Findings suggest that people knew about magnetism more than 2,000 years ago.

April 22, 2019, 5:08 p.m. by Michael d'Estries

The private space race to send humans to the ISS and beyond is about to enter a new nail-biting phase.

April 22, 2019, 3:54 p.m. by Christian Cotroneo

Here's how to start the conversation at home.

April 22, 2019, 3:13 p.m. by Ben Bolton

Dolphins were once thought to be loners, but video proves otherwise.

April 22, 2019, 1:42 p.m. by Tom Oder

Whether you need extra protection for your garden or your skin, these herbs and flowers can help shoo away pests.