Earth Matters

How the government shutdown is affecting the national parks

Costume designer repairs butterfly's torn wing

Illegal pot farms are endangering spotted owls

15 things you didn't know about manatees

Everyone's favorite hippo is turning 1

2017 was one of the top 3 hottest years on record

SpaceX's latest mission prepares to make history

Chameleons add glow-in-the-dark bones to long list of cool traits

Don't miss the 'super blue blood moon' on Jan. 31

Divers discover world's longest underwater cave in Yucatan Peninsula

Moscow got only 6 minutes of sunlight in December

What caused 200,000 saigas to die?