Astronomy Picture of the Day . Sun 360: STEREO Captures Views of the Entire Sun . ... Credit Copyright: STEREO Project , NASA Explanation: For the first time, the entire Sun is being imaged all at once. ... The above image shows nearly the entire Sun as it appeared one day last week, a few days before maximum exposure. Yesterday, the dark gap in the center closed completely, and STEREO was able to beam back to Earth full 360 degree images of the closest star . ... NASA Official: Jay Norris. ...