• Contact with STEREO-B solar observatory reestablished after 22 months

    After 22 months of failed communication attempts, NASA's Deep Space Network has finally reestablished communication with STEREO-B solar observatory. The STEREO Missions Operations team plans further recovery processes to assess observatory health, re-establish…

  • STEREO-A solar observatory resumes normal operations

    As of November 17, NASA’s STEREO-A spacecraft (Solar and Terrestrial Relations Observatory Ahead), has once again resumed its science operations and began transmitting data at its full rate. For the previous year, STEREO-A was transmitting only a weak signal,…

  • Comet Pan-STARRS now visible on STEREO Behind imagery

    Comet Pan-STARRS (C/2011 L4) passed inside the orbit of Mercury on March 10, 2013 reaching perihelion (its closet approach to the Sun). Now, it is visible object in the field of view of NASA's STEREO-B Heliospheric Imager.

    An animation of Comet