• 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,…

  • STEREO-A spacecraft returns data from the far side of the Sun

    On July 11, 2015 we received our first images in over three months from NASA's Solar TErrestrial RElations Observatory Ahead spacecraft, or STEREO-A. Since March 24, 2015, STEREO-A has been on the far side of the sun, where it has had to operate in safe mode, collec

  • Spacecraft sees solar storm engulf Earth

    For the first time, a spacecraft far from Earth has turned and watched a solar storm engulf our planet. The movie, released today during a NASA press conference, has galvanized solar physicists, who say it could lead to important advances in space weather forecasting.