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Yosemite fire 'size of Chicago'

A wildfire in Yosemite National Park in the US state of California has spread to almost 150,000 acres, according to fire service officials. A state of emergency has been declared for San Francisco after power lines servicing the city were threatened.

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Smoke from Yosemite wildfire seen from space station

A satellite image of the drought-fueled Rim Fire near Yosemite National Park Credit: REUTERS/NASA/Jeff Schmaltz/Handout

The smoke from the wildfires in California has been pictured by an astronaut on the International Space Station.

NASA astronaut Karen L Nyberg has tweeted two pictures of the smoke.

NASA astronaut Karen L Nyberg tweeted this picture from the International Space Station of the Yosemite fires. Credit: Twitter/ @AstroKarenN/ NASA

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