Esa/hubble: Sm3 A: Servicing Tasks Performed Using the Rms

Astronauts Steven L. Smith (right), payload commander, and John M. Grunsfeld use the Canadian-built remote manipulator system (RMS) robot arm to perform servicing tasks on the temporarily captured Hubble Space Telescope (HST).

Astronauts Steven L. Smith (right), payload commander, and John M.Grunsfeld use the Canadian-built remote manipulator system (RMS) robotarm to perform servicing tasks on the temporarily captured Hubble Space Telescope (HST).

Astronauts C. Michael Foale (left) and Claude Nicollier hover above Discovery's aft cargo bay during their shared space walk to perform servicing tasks on the Hubble Space Telescope (HST). The photo was taken with an electronic still...

This artist's impression shows a view from above of the exchange of one of Hubble's Gyroscopes during Servicing Mission 3B in 2002.

Astronaut Steven L. Smith, payload commander, retrieves a power tool while standing on the mobile foot restraint at the end of the remote manipulator system (RMS).

The first of a series of four images recorded from close range as the astronauts aboard the Space Shuttle Discovery prepared to grab the Hubble Space Telescope (HST) with the remote manipulator system (RMS) arm.

Astronaut John M. Grunsfeld, positioned on a foot restraint on the end of Discovery's remote manipulator system (RMS), prepares to replace a radio transmitter in one of the Hubble Space Telescope's electronics bay.

This artist's impression shows Hubble being 'grappled' by the Space Shuttle's remote manipulator arm at the beginning of Servicing Mission 3B in 2002.

The Hubble Space Telescope (HST) floats gracefully above the blue Earth after release from Discovery's robot arm after a successful servicing mission.

This artist's impression shows Hubble being released at the end of Servicing Mission 3B in 2002.