Astronomy & Astrophysics 101: Dark Energy - SciTechDaily

Dark energy is the name given to the as yet unknown energy source that is causing our Universe’s expansion to accelerate. Our Universe is expanding. One of the great mysteries of modern astronomy is that the expansion rate appears to be accelerating. The as y…

The universes expansion rate is accelerating. The unknown energy source causing this acceleration is called Dark Energy. Credit: Visualization by Frank Summers, Space Telescope Science Institute. Sim… [+1978 chars]

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