The Enigma of 95% of the Universe.

TL;DR
Our understanding of the universe has evolved over time, but today's understanding is complex and unsettling. The universe is expanding and accelerating due to dark energy, a force we don't fully understand. Dark matter, which binds galaxies together, is also invisible and mysterious. Only 5% of the universe is made up of ordinary matter, while 95% is still unknown. Despite technological advancements, there is still much we don't understand about the cosmos.
95% of the Universe is a total mystery Big Think
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