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Dark energy what is it? Dark energy is a unknown energy said to take up 70 percent of the universe. The energy is a repulsive gravitational effect that is causing the universe to accelerate out-ward. No one knows exactly what dark energy is or where it comes from.
Dark Energy is a new idea. Little is known about dark energy, yet it takes up a huge amount if the universe.
Scientist were able to show the universe was expanding at an accelerated rate by measuring the red-shift of an object by comparing the spectral lines of the elements and the spectral lines of the same elements measured in a lab. The more distant the objects that emit light the brighter the spectral lines. In 1998 scientist observed that the supernovas are becoming dimmer, which means they are getting closer instead of farther away.
They were able to show that dark energy has an influence on light particles and photons. When a photon passes a galaxy it falls into the gravitational pull, and the dark energy......

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