A Soyuz capsule carrying two Russian cosmonauts and one American astronaut safely landed Sunday in Kazakhstan, concluding a ...

Veteran NASA astronaut Don Pettit celebrated his 70th birthday as he returned to Earth from a seven-month stay at the ...

National Geographic Kids editor Allyson Shaw joins ABC News Live to talk about Earth Week. Elections Canada says preliminary ...

But as other industrialized nations make strides to reduce emissions, the US appears to be shifting into reverse. On the ...

Don Petit, along with two Russian cosmonauts, touched down in Kazakhstan Saturday evening after a 220-day mission abroad the ...

Buying refurbished can help you save some green while going green. Not all refurbs are created equal, but these sales earned ...

The Biomass mission will use a long-forbidden part of the radio spectrum to see how much carbon forests capture.

Conspiracy theories might feel like a modern phenomenon, but one has its roots in the flat landscape of the Cambridgeshire ...

All that said, the findings can’t confirm the terrestrial life theory beyond a doubt. There’s still a chance hydrogen-heavy ...

Join us in the celebration with a chance to win a National Geographic-Lindblad Expeditions cruise to Antarctica for two! Ever ...

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Earth Day is celebrated on April 22 each year, promoting environmental protection and awareness since 1970.