Does Chuck believe in 'Ancient Aliens'?

The simple answer is no. Chuck does not believe that beings from another planet exisit or have visited earth in spacecraft. From the below articles, his Briefing Packages on 'Angels' and his book 'Alien Encounters,' Chuck essentially fit's 'Aliens' and 'UFO's' into two camps: Man-made or Spiritual beings.

Here is a list of articles on what Chuck has to say about 'Aliens':

The Return of the Nephilim?

Mischievous Angels or Sethites?

As The Days of Noah Were