In Brief

Six days of darkness: Nasa intervenes, but no sign of blackout

Rumours circulating online suggested that a massive solar storm would lead to six days of darkness this month

16 Dec 2014

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Black marble: Nasa images of earth at night

A newly released image of Europe and Africa at night. The pictures, stiched together from photographs taken on cloud-free nights, come from the Suomi NPP satellite and show the planet in more detail than ever before.

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