Preparations for a possible spacewalk to repair a small ding in Endeavour’s thermal protection system tiles will occupy a considerable part of today for Commander Scott Kelly and Mission Specialists Rick Mastracchio, Dave Williams and Tracy Caldwell.

Endeavour’s third spacewalk prepared the International Space Station for the next step in solar array deployment and voice communications system upgrades despite an early end called because of a damaged glove.

The third spacewalk of Endeavour’s visit to the International Space Station will help lay groundwork for relocation of the Port 6 truss, upgrade a station voice communications system and retrieve materials experiments.

In a first for the International Space Station, astronauts today installed a 7,000-pound storage platform using only the station and shuttle’s robotic arms.

A third external stowage platform (ESP) will be installed on the International Space Station today. This time it will be done by crew members using robotic arms of the shuttle Endeavour and the station.

The International Space Station has a new control moment gyroscope, which is in the process of being checked out by Mission Control.

The International Space Station will get a new control moment gyroscope today, courtesy of the space shuttle Endeavour and spacewalking astronauts Rick Mastracchio and Dave Williams.

With five days of pilfering power from the International Space Station under their belt, mission managers today decided to extend space shuttle Endeavour’s flight from 11 to 14 days.

Space shuttle Endeavour crew members will take a close look at areas of apparent damage to the orbiter’s thermal protection system in a focused inspection today.

First-time spacewalkers Rick Mastracchio and Dave Williams added a two-ton, 11-foot-long spacer to the International Space Station’s backbone today during the mission’s inaugural spacewalk.