Solar System.
Phoenix Stretches its Arm
Jet Propulsion Laboratory https://www.jpl.nasa.gov/ May 28, 2008
The Phoenix spacecraft is scheduled to begin raising its robotic arm up and out of its stowed configuration.
Transcript
The Phoenix spacecraft is scheduled to begin raising its robotic arm up and out of its stowed configuration on the third Martian day, or Sol 3 (May 28, 2008) of the mission.