Watch Herschel-Planck launch 14 May 2009 15:12 CEST (replay)   Replay the Herschel and Planck launch   15 May 2009   Video showing the Herschel and Planck satellite pair lifting off on board an Ariane 5 from Europe's Spaceport in French Guiana on 14 May 2009 at 15:12 CEST.