The discovery that distant galaxies are receding from one another revolutionized our understanding of the Universe, revealing its constant expansion as space stretches between celestial bodies.
By the late 1990s, it was established that the Universe’s expansion was not only ongoing but accelerating, leading to the introduction of dark energy to explain this phenomenon.
The Hubble tension presents a significant challenge in cosmology today, resulting from discrepancies in measuring the current expansion rate of the Universe through differing techniques.
In 2011, the Nobel Prize awarded to Perlmutter, Riess, and Schmidt recognized their pivotal role in uncovering the accelerating expansion of the Universe, fundamentally altering astrophysics.
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