Earth Matters

Critics weigh in on Al Gore's 'An Inconvenient Sequel'

SpaceX rocket makes picture-perfect landing in Pacific Ocean

Scientists finally explain mysterious 'fairy circles' found in Namibia

2016 was the hottest year on record

Massive Antarctic ice crack shutters British research station

10 women who changed the way we see nature

A few interesting facts about flying squirrels

8 unusual guard animals

Wyoming lawmakers want to put kibosh on sale of clean energy

Check out the most spectacular outdoor photos of the year

Galaxies are being killed throughout the universe. What's killing them?

5 fast facts about sloths

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