Atlantis astronaut Leland Melvin, a former college football star drafted by the Detroit Lions, used the international space station's robot arm today to carefully pull the European Space Agency's Columbus research module out of the shuttle's cargo bay.

Working with careful deliberation, Melvin, assisted by outgoing station astronaut Dan Tani and his replacement, Leopold Eyharts, slowly inched the 28,200-pound module out of the cargo bay at 2:56 p.m. using a grapple fixture that was attached to the bus-size laboratory earlier today by spacewalkers Rex Walheim and Stan Love. It was the first step in a carefully choreographed sequence of maneuvers to move the module to the front of the station for attachment to the right side of the Harmony connecting module.

"Columbus has started its trip to the new world," Tani quipped as the Canadian-built robot arm slowly pulled the module free.

"All right," one of the spacewalkers replied.

The 22.5-foot-long Columbus will add some 2,600 cubic feet of volume to the station after it is pulled into place by motorized bolts. Built by EADS Space Transportation, Columbus was launched with four European science racks and one European storage rack in place. NASA later will install five racks of its own. The European Space Agency has spent about $2 billion building Columbus, the experiments that will fly in it and the ground control infrastructure necessary to operate them.

"The laboratory modules are why we're doing it," NASA Administrator Mike Griffin said last week. "On the space station, it's really two things. It's a place to learn how to live and work in space, which we need to do, and for a long period of time before we go to Mars. It's also a place to do the research we would like to do in a better way than we've been able to do it in the more confined places we've flown in before.

"So now, more than a fourth of our laboratory capacity on the station as a whole is going up on this flight. It puts the Europeans into human spaceflight in a visible and permanent way. As you say, it makes the station a truly international collaboration, just every thing about it is good."

While Melvin and Tani worked to move Columbus into place for attachment to Harmony, Walheim and Love took a moment to recharge their spacesuit oxygen supplies before moving up to the station's main solar power truss. They plan to set up tools and make preparations to replace a nitrogen tank during a spacewalk Wednesday. The tank was used to pressurize the station's ammonia cooling system and a replacement was launched aboard Atlantis.

Additional coverage for subscribers:
VIDEO: NARRATED PREVIEW OF COLUMBUS' ATTACHMENT PLAY
VIDEO: OVERVIEW ANIMATION OF COLUMBUS MODULE PLAY
VIDEO: GUIDED TOUR OF ATLANTIS' PAYLOAD BAY PLAY
VIDEO: NARRATED PREVIEW OF TODAY'S SPACEWALK PLAY
VIDEO: FLIGHT DAY 4 HIGHLIGHTS MOVIE PLAY | XL SIZE
VIDEO: SUNDAY'S MISSION STATUS BRIEFING PLAY
VIDEO: FLIGHT DAY 3 HIGHLIGHTS MOVIE PLAY | XL SIZE
VIDEO: POST-MISSION MANAGEMENT TEAM BRIEFING PLAY
VIDEO: SATURDAY'S MISSION STATUS BRIEFING PLAY
VIDEO: SHUTTLE ATLANTIS DOCKS TO SPACE STATION PLAY
VIDEO: ATLANTIS PERFORMS THE 360-DEGREE BACKFLIP PLAY
VIDEO: VIEWS OF THE SHUTTLE APPROACHING FROM BELOW PLAY
VIDEO: ATLANTIS COMPLETES THE "TI" BURN PLAY
VIDEO: NARRATED PREVIEW OF THE DOCKING PLAY
VIDEO: FLIGHT DAY 2 HIGHLIGHTS MOVIE PLAY | XL SIZE
VIDEO: FRIDAY'S MISSION STATUS BRIEFING PLAY
VIDEO: HEAT SHIELD INSPECTIONS EXPLAINED PLAY

VIDEO: LAUNCH REPLAY: CAMERA CS-1 PLAY
VIDEO: LAUNCH REPLAY: CAMERA CS-2 PLAY
VIDEO: LAUNCH REPLAY: CAMERA CS-6 PLAY
VIDEO: LAUNCH REPLAY: WEST TOWER PLAY
VIDEO: LAUNCH REPLAY: FRONT CAMERA PLAY
VIDEO: LAUNCH REPLAY: CAMERA 009 PLAY
VIDEO: LAUNCH REPLAY: CAMERA 049 PLAY
VIDEO: LAUNCH REPLAY: CAMERA 050 PLAY
VIDEO: LAUNCH REPLAY: CAMERA 051 PLAY
VIDEO: LAUNCH REPLAY: CAMERA 054 PLAY
VIDEO: LAUNCH REPLAY: CAMERA 060 PLAY
VIDEO: LAUNCH REPLAY: CAMERA 070 PLAY
VIDEO: LAUNCH REPLAY: CAMERA 071 PLAY

VIDEO: FLIGHT DAY 1 HIGHLIGHTS MOVIE PLAY | XL SIZE
VIDEO: NARRATED REVIEW OF ATLANTIS' LAUNCH PREPS PLAY | XL SIZE
VIDEO: NASA AND ESA POST-LAUNCH NEWS BRIEFING PLAY

VIDEO: FULL LENGTH LAUNCH MOVIE! PLAY
VIDEO: ATLANTIS BLASTS OFF WITH COLUMBUS PLAY
VIDEO: POLLS GIVE THE FINAL "GO" TO LAUNCH PLAY
VIDEO: ASTRONAUTS ARRIVE AT LAUNCH PAD 39A PLAY
VIDEO: CREW DEPARTS QUARTERS FOR LAUNCH PAD PLAY
VIDEO: ASTRONAUTS DON THEIR SPACESUITS FOR LAUNCH PLAY
VIDEO: RUSSIAN CARGO SHIP DOCKS TO STATION THIS MORNING PLAY
VIDEO: PAD GANTRY ROLLED BACK THE NIGHT BEFORE LAUNCH PLAY

VIDEO: COLUMBUS AND ATV OVERVIEW BRIEFING PLAY
VIDEO: PRE-LAUNCH NEWS CONFERENCE PLAY
VIDEO: TUESDAY MORNING'S COUNTDOWN STATUS BRIEFING PLAY
VIDEO: MONDAY'S CARGO SHIP UNDOCKING FROM STATION PLAY
VIDEO: ATLANTIS' PAYLOAD BAY DOORS CLOSED FOR FLIGHT PLAY
VIDEO: CREW RETURNS TO KENNEDY SPACE CENTER FOR LAUNCH PLAY
VIDEO: MONDAY MORNING'S COUNTDOWN STATUS BRIEFING PLAY
VIDEO: POST-FLIGHT READINESS REVIEW BRIEFING PLAY
VIDEO: STS-122 ASTRONAUT BIOGRAPHIES PLAY
VIDEO: NARRATED OVERVIEW OF ATLANTIS' MISSION PLAY
VIDEO: INSIGHTS INTO COLUMBUS SCIENCE LABORATORY PLAY
VIDEO: STS-122 MISSION OVERVIEW BRIEFING PLAY
VIDEO: BRIEFING ON THE SPACEWALKS PLAY
VIDEO: CREW'S PRE-FLIGHT BRIEFING PLAY
VIDEO: CREW INTERVIEW WITH STEVE FRICK PLAY
VIDEO: CREW INTERVIEW WITH ALAN POINDEXTER PLAY
VIDEO: CREW INTERVIEW WITH LELAND MELVIN PLAY
VIDEO: CREW INTERVIEW WITH REX WALHEIM PLAY
VIDEO: CREW INTERVIEW WITH HANS SCHLEGEL PLAY
VIDEO: CREW INTERVIEW WITH STANLEY LOVE PLAY
VIDEO: CREW INTERVIEW WITH LEOPOLD EYHARTS PLAY
MORE: STS-122 VIDEO COVERAGE
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