Welcome to the STEREO website! STEREO consists of two space-based observatories - one ahead of Earth in its orbit, the other trailing behind. With this new pair of viewpoints, scientists will be able to see the structure and evolution of solar storms as they blast from the Sun and move out through space. This movie shows a spherical map of the Sun as it currently appears, formed from a combination of the latest STEREO Ahead and Behind beacon images, along with an SDO/AIA image in between. The movie starts with the view of the Sun as seen from Earth, with the 0 degree meridian line in the middle. The map then rotates through 360 degrees to show the part of the Sun not visible from Earth. The black wedge shows the part of the Sun not yet visible to the STEREO spacecraft. Latest EUVI Images Featured Gallery Item Coronal Mass Ejection with a Solar Wave STEREO SELECTS A selection of some of our favorite video clips and images as they occur. View Selects gallery STEREO Galleries Index SOHO Pick of the week What's New For more news about STEREO STEREO sees the Entire Sun February 6, 2011On February 6, 2011, NASA released the first ever images of the entire Sun, using a combination of STEREO images together with data from the Solar Dynamics Observatory. This never before seen view was made possible by STEREO's unique viewing geometry. Coming Soon - The Entire Sun February 2, 2011For the past 4 years, the two STEREO spacecraft have been moving away from the Earth and gaining a more complete picture of the sun. On February 6, 2011, NASA will reveal the first ever images of the entire sun and discuss the importance of seeing all of our dynamic star. Visit STEREO on the NASA Portal. Last Revised: Wednesday, 26-Jan-2011 11:37:26 EST Responsible NASA Official: Privacy Policy and Important Notices Webmaster: Kevin Addison