NASA Goddard Space Flight Center technician Carl Clause installs an aft omni coupler on the Solar Dynamics Observatory or SDO.

At the Astrotech Space Operations facility in Titusville, Fla., NASA Goddard Space Flight Center technician Carl Clause, second from left, installs an aft omni coupler on the bagged Solar Dynamics Observatory, or SDO.

SDO is the first space weather research network mission in NASA's Living With a Star Program. The spacecraft's long-term measurements will give solar scientists in-depth information about changes in the sun's magnetic field and insight into how they affect Earth. Liftoff on an Atlas V rocket is scheduled for Feb. 3, 2010. For information on SDO, visit http://www.nasa.gov/sdo. Photo credit: NASA/Troy Cryder