With the crew of space shuttle Endeavour in medical quarantine, President Obama is concerned to hear someone in the room cough and warns them to "stay away from my astronauts!" The President and the First Lady were required to undergo a checkup by NASA doctors before meeting the shuttle crew.

Additional coverage for subscribers:
VIDEO: ASTRONAUTS ARRIVE AT LAUNCH SITE PLAY | HI-DEF
VIDEO: COUNTDOWN PREVIEW BRIEFING PLAY | HI-DEF

VIDEO: GUIDED TOUR OF SPACE STATION PLAY | HI-DEF
VIDEO: ENDEAVOUR MISSION PREVIEW MOVIE PLAY | HI-DEF
VIDEO: GET TO KNOW ENDEAVOUR'S ASTRONAUTS PLAY | HI-DEF

VIDEO: PRE-FLIGHT INTERVIEW WITH MARK KELLY PLAY
VIDEO: PRE-FLIGHT INTERVIEW WITH GREG JOHNSON PLAY
VIDEO: PRE-FLIGHT INTERVIEW WITH MIKE FINCKE PLAY
VIDEO: PRE-FLIGHT INTERVIEW WITH ROBERTO VITTORI PLAY
VIDEO: PRE-FLIGHT INTERVIEW WITH DREW FEUSTEL PLAY
VIDEO: PRE-FLIGHT INTERVIEW WITH GREG CHAMITOFF PLAY

VIDEO: ENDEAVOUR CLEARED FOR APRIL 29 LAUNCH PLAY

VIDEO: EVACUATION DRESS REHEARSAL PLAY | HI-DEF
VIDEO: ASTRONAUTS BOARD ENDEAVOUR PLAY | HI-DEF
VIDEO: SUITING UP FOR PRACTICE COUNT PLAY | HI-DEF
VIDEO: SHUTTLE INSPECTED FOR STORM DAMAGE PLAY | HI-DEF
VIDEO: CREW TEST-DRIVES PAD ESCAPE VEHICLE PLAY | HI-DEF
VIDEO: ASTRONAUT CHAT AT THE PRESS SITE PLAY | HI-DEF
VIDEO: CREW ARRIVES FOR PRACTICE COUNT PLAY | HI-DEF

VIDEO: PAYLOADS ARRIVE AT LAUNCH PAD 39A PLAY | HI-DEF
VIDEO: CANISTER ROTATED UPRIGHT FOR PAD PLAY | HI-DEF
VIDEO: PALLET OF SPARE PARTS INTO CANISTER PLAY | HI-DEF
VIDEO: AMS PAYLOAD PUT INTO TRANSPORTER PLAY | HI-DEF

VIDEO: SHUTTLE AND STATION PROGRAM BRIEFING PLAY
VIDEO: THE STS-134 MISSION OVERVIEW PRESENTATIONS PLAY
VIDEO: IN-DEPTH WITH ALPHA MAGNETIC SPECTROMETER PLAY
VIDEO: PREVIEW BRIEFING ON MISSION'S SPACEWALKS PLAY
VIDEO: THE ASTRONAUTS' PRE-FLIGHT NEWS BRIEFING PLAY

VIDEO: SUN RISES OVER THE LAUNCH PAD PLAY | HI-DEF
VIDEO: ENDEAVOUR ARRIVES ATOP PAD 39A PLAY | HI-DEF
VIDEO: ROLLOUT FROM VEHICLE ASSEMBLY BUILDING PLAY | HI-DEF

VIDEO: HOISTING ENDEAVOUR TO TANK AND SRBS PLAY | HI-DEF
VIDEO: ORBITER GOES VERTICAL PLAY | HI-DEF
VIDEO: ENDEAVOUR LEAVES PROCESSING HANGAR PLAY | HI-DEF

VIDEO: PAYLOAD MEDIA DAY PLAY | HI-DEF
VIDEO: THE ALPHA MAGNETIC SPECTROMETER PLAY | HI-DEF
VIDEO: PAYLOAD REMOVED FROM C-5 PLAY | HI-DEF
VIDEO: AMS ARRIVES FROM EUROPE PLAY | HI-DEF

VIDEO: EXPRESS LOGISTICS CARRIER NO. 3 PLAY | HI-DEF
VIDEO: HIGH-PRESSURE OXYGEN GAS TANK PLAY | HI-DEF
VIDEO: PUTTING STATION ANTENNA ON CARRIER PLAY | HI-DEF

VIDEO: TANK UNLOADED TO ASSEMBLY BUILDING PLAY | HI-DEF
VIDEO: THE EXTERNAL FUEL TANK ARRIVES PLAY | HI-DEF
VIDEO: BOOSTER SEGMENT MOVED TO VAB PLAY | HI-DEF
VIDEO: KENNEDY SPACE CENTER SRB CEREMONY PLAY | HI-DEF
VIDEO: ENDEAVOUR FITTED WITH MAIN ENGINES PLAY | HI-DEF
VIDEO: ORBITER TOWED OFF RUNWAY PLAY | HI-DEF

MORE: STS-134 VIDEO ARCHIVE
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