STS-110 Mission Specialists Lee Morin, left, and
Jerry Ross work on the International Space Station's
S0 Truss during the mission's second spacewalk.
here to see STS-110 images in the Gallery.
Delivers Framework for Station Expansion
Space Shuttle Atlantis lifted off at 3:44 p.m. CDT (2044 GMT)
April 8, 2002 on a mission to install the 43-foot-long S0
(S-Zero) Truss -- the backbone for future station expansion
-- to the International Space Station.
in orbit, the STS-110 crewmembers -- Bloomfield, Frick and
Mission Specialists Ellen Ochoa, Jerry Ross, Rex Walheim,
Steve Smith and Lee Morin -- performed four spacewalks and
used the shuttle and station robotic arms to install and outfit
the S0. They prepared the station for future spacewalks and
spent a week in joint operations with the station's Expedition
Four crew. They also prepared the first railroad in space,
the Mobile Transporter, for use.
returned to Earth at 11:27 a.m. CDT (1627 GMT) April 19, 2002.
for an interactive view of STS-110. (Requires Flash
STS-110 Mission Specialist Ellen Ochoa at the controls,
the International Space Station's robot arm moves
the S0 (S-Zero) Truss into position for installation.
A Mission of Milestones
Space Shuttle Atlantis' flight to the International
Space Station included several milestones. First, STS-110
delivered the S0 (S-Zero) Truss -- the first of nine pieces
that will make up the station's external framework that will
eventually consist of nine pieces and stretch 109 meters (356
Mission Specialist Jerry Ross became the first human to be
launched into space seven times. With the two spacewalks that
he performed, he tightened his grip on the most U.S. spacewalks
(nine) and spacewalking time -- 58 hours, 18 minutes. Second
on the list for both spacewalking milestones is Ross' crewmate
Mission Specialist Steve Smith, who also conducted two spacewalks
during STS-110 to give him a total of 49 hours, 48 minutes
during seven spacewalks.
had other spacewalk
milestones. This was the first time that the station's robotic
arm was used to maneuver spacewalkers around the station,
and it was the first time that all of a shuttle crew's spacewalks
were based out the station's Quest Airlock.
also had a milestone. When STS-110 launched on April 8, 2002,
it became the first shuttle to use three
Block II Main Engines.