If that sounds like an obvious statement about Captain Jack's sexual appetites, consider this: Barrowman has recently been caught promoting a serious scientific study examining the original Big Bang that scientists theorize began life in the universe.

In the same way that Star Trek actors have frequently lent their time to the promotion of NASA, Barrowman began giving British audiences an understanding of the work of the European Organization for Nuclear Research (CERN) this July.

He's kicking off a series of podcasts which will explain what has been called "the biggest scientific experiment in history". The Large Hadron Collider (LHC) project, run by British physicist Dr. Brian Cox, represents one of the largest governmental outlays for pure research in history.

The aim of the LHC is to replicate the conditions of the Big Bang, so that scientists can carefully observe the instant afterward. They hope that the tiny fraction of a second after the Big Bang will unlock some rather large mysteries about the creation of life. Cox and his crew are endeavoring to discover what happened to the antimatter that the Big Bang theoretically created, why some particles have mass and others don't, and what exactly is "dark matter".

That all of this sounds like stuff that would interest the Doctor explains why Barrowman's been brought on board. His first video podcast on the subject is now available.