The Eternity is equipped with a standard automodulating shield system. The shield generators also project a refractive bubble around the ship. As a result, 80% of enemy sensor beams are reflected away in random directions never returning to the sending ship, rendering the Eternity very stealthy, though not invisible in the way that a true cloaking device would provide.
The main spaceframe of the Eternity is composed of standard tridanium and duranium. The hull has a thin outer sheathing of triadium, an alloy discovered in the Delta Quadrant by the USS Voyager. Triadium is extremely heavy and dense, but when manufactured in thin enough sheets, its strength and flexibility provide excellent protection against kinetic and particle weapons.
The huge science pod is the Eternity's main distinguishing feature. Invented by Doctor Helmut Lang, the pod contains cutting-edge sensor systems. Much of it is still experimental and utilizes coherent solanagen waveguides to penetrate into the tertiary subspace manifold resulting in a tremendous increase in range and sensitivity as well as the ability to scan in both Euclidian space and extremely deep subspace domains.
The sensor pod also contains a probe launching system consisting of one forward-facing launch tube and a full complement of advanced sensor probes.