In this video the JK experts remove the engine bolts from a Volkswagen in preparation to for removal of the engine.
Dark matter. Written By: Dark matter, a component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity. Dark matter makes up 26.5 percent of the matter-energy composition of the universe; the rest is dark energy (73 percent) and âordinaryâ visible matter (0.5 percent).
Neutrons bouncing in Earth's gravity are helping to shed light on two of the greatest mysteries in the universe, dark matter and dark energy, researchers say. Dark matter is an invisible substance thought to make up five-sixths of all matter in the universe.