Solar Observatories To Fly Behind Sun | Video

NASA STEREO-A and STEREO-B solar probes' orbits will take them out of view from Earth at different times in 2015 making communication very difficult. When in this 'superior conjunction' position with Earth, the satellites will be switched into non-data collecting 'safe mode'.

Sun Spits Fire In STEREO-B Satellite Direction

credit : NASA / GSFC