Dark Matter Shielding is a technology on the Exploration and Expansion technology tree with a research cost of 25000 . It unlocks one Empire Improvement, requires research in Mass Particle Displacement, and allows further research in Dark Energy Effects.
"Of a density and anti-mass whose values perplexed scientists for centuries, Dark Matter is finally well understood and being exploited for use in shield technology."
- Wormholes in your possession are linked
"Measurements and analyses done by ships traversing wormholes have revealed an unexpected discovery. In fact, in the extra-dimensional space between the entry and exit of a wormhole exists a sort of 'hyperspace' within which all currently mapped wormholes are connected. This can be exploited to permit a vessel to enter a wormhole and exit through any other wormhole whose coordinates are known."