Aboard the International Space Station, NASA astronaut Christina Koch snapped this image of an aurora, saying: "Years ago at the South Pole, I looked up to the aurora for inspiration through the 6-month winter night. Now I know they’re just as awe inspiring from above. #nofilter" Credit: NASA/Christina Koch #nasa #auroras #auroraaustralis #space #exploration #astronauts #iss #spacestation #humansinspace