In this paper, I present a space-time of two open universes connected by a
Lorentzian wormhole. The space-time has the following features: (1) it can
exactly solve the Einstein equations; (2) the weak energy condition is sati
sfied everywhere; (3) it has a topology of R-2 x T-g, (g greater than or eq
ual to 2); (4) it has no event horizons. (C) 2001 Elsevier Science B.V. All
rights reserved.