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A sled dog flunks racing school but aces the happy ending

What would Earth look like if all the ice melted?

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

How much screen time is too much for kids?

Chagas disease more deadly than we thought

How an earthquake and El Nino created the Neskowin Ghost Forest

10 things to know about measles

Brainless slime has a doozy of a superpower

'Mind-reading' device can translate your brain activity into audible sentences

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