Planet Earth

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The story of Earth's first selfie

On December 24, 1972, a photo of planet Earth from NASA's last Apollo space mission helps mankind realise we're all in this together. Footage from the show "Generation X".

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The story of Earth's first selfie

Before plants or animals existed, this 250,000-ton rock fell in the mud. Here's how we know

NASA sent a map to space to help aliens find Earth. Now it needs an update.

What is the Autumn equinox? Here's what you need to know.

How to throw an (almost) zero-waste birthday party

The first person to see the 'Pale Blue Dot' image still has it stashed in her closet

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