Dark energy is a mysterious force that constitutes approximately 70% of the universe, causing galaxies to accelerate away from each other at an increasing rate, yet despite 30 years of scientific investigation, its fundamental nature remains unknown.
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The force tearing the universe apartAdded:
is 70% of the universe. We can't see it, touch it, or detect it directly. We only know it exists because every galaxy is being pushed apart faster and faster every year.
Whatever it is, it fights gravity and it's winning.
Physicists call it dark energy. After 30 years of looking, we still have absolutely no clue about.
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