:: Wormholes

Quote from  http://phost.org/dox/wormhole.htm:

Wormholes are imaginary connections between two points in the VGA Planets universe. Ships that arrive at one end of a wormhole instantly disappear and reappear at the other end. Wormholes may be given attributes that indicate how stable and safe the wormhole is, as well as destination waypoints that cause the wormhole to move over time.

For further information please visit  PHost 3: Wormholes.