The Solar Dynamics Observatory, or SDO, is set to launch from Florida no earlier than 10:30 a.m. EST on Feb. 9, on an unprecedented mission to study the sun and its dynamic behavior. Onboard telescopes will scrutinize sunspots and solar flares using more pixels and colors than any other observatory in the history of solar physics. And SDO will reveal the sun’s hidden secrets in a prodigious rush of pictures.