The truth is out there - or more precisely - in here!

The X-Files star Gillian Anderson is with child.

The culprit?

Not a space alien but boyfriend Mark Griffiths. 

It's their second spawning and was confirmed by Anderson's paranormal partner…uh …manager Connie Freiberg.

The hit show ran from 1993 -2002 and has cloned a second film sequel -- The X-Files: I Want to Believe.

The film opens in July and reunites Gilly with TV partner Mulder, David Duchovny.