Space Station / Heliospheric Observatory / Solar Dynamics Observatory / /
Holiday
Earth Day / /
IndustryTerm
telephone service / electricity / electrified gas / gas and oil pipelines / and low pressure systems / electrical and magnetic energy / magnetic energy / energy / /
NaturalFeature
Steele Hill / /
Organization
STEREO mission TRACE / United Nations / STEREO mission / National Aeronautics and Space Administration / NOAA’s Space Environment Center / Johnson Space Center / /
SOHO, NASA/ESA Looking at the sky with the naked eye, the Sun seems static, placid, constant. From the ground, the only noticeable variations in the Sun are its location (where will it rise and set today?) and its colo