Earth Matters

Why one of the world's largest emperor penguin colonies is collapsing

How an earthquake and El Nino created the Neskowin Ghost Forest

How California's improving air quality is putting a dent in the region's dangerous fog

Why this hive of honeybees is doing 'the wave'

NASA's InSight lander captures intimate sights and sounds of Mars

7 superlative flying animals

Drone reveals 'extinct' Hawaiian flower growing on remote cliff

The gorillas in this selfie want to be just as cool as the man who protects them

Synchronized fireflies gather for a 'rave' in the Great Smoky Mountains

The bittersweet beauty of Greenland's melting glaciers

Bobcat displaced by California's Woolsey Fire gives birth to 4 kittens

Are SpaceX's dreams of sending humans to space on hold?