You've probably been hearing a lot about United States astronaut Scott Kelly. He's breaking records up in space. Notably, last month, he broke the previous record of 215 consecutive days in space. He is scheduled to return to Earth in March, after spending one year up there.
He and his crew also became the first residents of the International Space Station to eat homegrown vegetables. And, for fun, he made a Halloween video as a masked man haunting the space station that's been viewed thousands of times. (See video next page.)
Have you ever wondered what the Earth looks like from ISS? The crew on ISS, which is the size of a football field and has been occupied since 2000, sees the Earth in a way most people never will. Specifically, from 205 miles up.
There's a NASA site where you can see high-definition photos taken from ISS. You can look at photography collections, search its database and watch videos.
NASA's High Definition Earth Viewing (HDEV) system is an experiment. It began in April 2014 with the objective of finding out what effect long-term cosmic ray exposure has on the quality of HD images.