Meet the cecropia moth, N. America's largest moth

June 26, 2017, 5:29 p.m. by Christian Cotroneo

This contest winner's face could launch a thousand adoptions.

June 26, 2017, 3:53 p.m. by Jenn Savedge

Seasonal variations in daylight may be the key, say study authors.

June 26, 2017, 3:15 p.m. by Robin Shreeves

By making patties from beef and mushrooms, the company will reduce the carbon footprint of its burgers while adding nutrition.

June 26, 2017, 2:37 p.m. by Michael d'Estries

800,000-pound landmark, donated as a seedling by naturalist John Muir more than a century ago, was moved to allow for the expansion of a hospital.

June 26, 2017, 2:09 p.m. by Jaymi Heimbuch

Is this a conservation success story, or a decision that will lead to the bears' decline?

June 26, 2017, 11:17 a.m. by Christian Cotroneo

A childhood conundrum finally answered by science.

June 26, 2017, 11:16 a.m. by Sidney Stevens

Lightning is more than just a stunning spectacle. Take our quiz to see how much you really know about this electrifying natural wonder.

June 26, 2017, 8:22 a.m. by Starre Vartan

Context is key, and it's something machines just don't have yet.

June 26, 2017, 7:08 a.m. by Michael d'Estries

Massive investment coupled with falling prices has created a perfect renewable storm in the Golden State.

June 26, 2017, 6:13 a.m. by Jaymi Heimbuch

This protected area has been named a UNESCO Biosphere Reserve.

June 25, 2017, 8:20 p.m. by Bryan Nelson

The world in "Eternal Sunshine of the Spotless Mind" could soon be a reality.

June 25, 2017, 12:35 p.m. by Jenn Savedge

From packing lunches to doing the laundry, here's when your kids should start soloing these tasks and chores.