Space Shuttle Columbia continues to perform well in its supporting
role for the U.S. Microgravity Lab-2. Since Friday morning's launch,
the orbiter has remained a steady host, providing electrical power,
cooling and other needs to keep the orbiting laboratory in business.
The seven-member crew continues to work around the clock in two
shifts. Columbia is in a 170x167 statute mile orbit, circling the
Earth every 90 minutes.
Go to STS-73 Flight Day 4 Highlights: