But, y'know, this is real. To create the final time-lapse image, Pettit collaborated with astrophotographer Babak Tafreshi who, back on Earth, assisted in processing the long exposure multiple photos.

However, unlike Interstellar, this is completely real footage captured by a real-life astronaut. So, what is it? Petitt set up his camera to perform a long exposure shot of the Earth out of the ...