Sagan’s philosophical opus centers around Dr. Ellie Arrowway, the discovery of a radio message from Vega, and the subsequent building of a machine in accordance with directions in the message. A key twist in the plot requires Ellie to briefly posit time travel as the only explanation that fits her scientific viewpoint.
You know, it’s not called a space-time continuum for nothing. If they can make tunnels through space, I suppose they can make some kind of tunnels through time.

Variants

(1)
  1. Contact by Carl Sagan (September 1985).

Derived Works

(1)
  1. Contact by James V. Hart and Michael Goldenberg, directed by Robert Zemeckis (11 July 1997).