Taken 250 miles (402 km) above Earth and at a speed of 17,500 mph (28,164 km/h), this stunning timelapse video of the aurora borealis was tweeted by Nasa astronaut Jack Fischer from the International Space Station. Fischer shared his enthusiasm online: ‘People have asked me what a “burrito of awesomeness smothered in awesome sauce” is … Well folks, it looks like this … awesome sauce is green.’ Aurora borealis is the result of collisions between the Earth’s gaseous particles and matter released by the sun’s atmosphere

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