See the Best Photos From an Astronaut's Sixth Month in Space

"#Aurora seen in a new light with a different camera lens. #YearInSpace" - via Twitter on Aug. 28, 2015 Scott Kelly—NASA

"#Aurora seen in a new light with a different camera lens. #YearInSpace" - via Twitter on Aug. 28, 2015

TIME is following Scott Kelly’s mission in the new series, A Year In Space . Watch four full episodes here .

MORE: See more photographs from Scott Kelly's yearlong mission in space here .