The first of a new series of documentaries looking at the connection between science fiction and science fact.

Tonight Gillian Anderson, who plays Agent Dana Scully in The X Files, investigates the growing number of encounters and abductions throughout the world which have been attributed to alien life forms, and asks if the reports are the result of vivid imaginations or if the truth really is out there.
See today's choices.

Further details: Ceefax page 623, or the Internet on [web address removed].