At Astrotech Space Operations in Titusville Fla. NASA's Solar Dynamics Observatory rests on a work stand.

At Astrotech Space Operations in Titusville, Fla., NASA's Solar Dynamics Observatory, or SDO, rests on a work stand after its lift and rotation. 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. In preparation for its anticipated November launch, engineers will perform a battery of comprehensive tests to ensure SDO can withstand the stresses and vibrations of the launch itself, as well as what it will encounter in the space environment after launch. Photo credit: NASA/Cory Huston