CS: Herschel has separated. Godspeed Herschel

This is several seconds after take off...
This is the booster separation.

This is the separation with the fairing (the cone on top of the rocket)

This is the ejection of the first stage.

This is a cartoon of the separation of Herschel from Planck. Here is the reason why the Compressive Sensing community should care about this launch.

Good job Arianespace!