SCIENCEQUANTA MAGAZINE
How Fast Is the Universe Really Expanding?
The universe's expansion, known since the 1930s, was discovered to be accelerating in the 1990s, leading to the proposal of dark energy as the cause. This acceleration remains a major mystery in cosmology.
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Adjacent reporting
- The universe is expanding 'too fast' - and scientists have no idea why
- The Universe is expanding too fast and scientists still can’t explain it
- The Universe Has Been Expanding Since the Big Bang. Just Not How We Thought.
- Dark energy is still accelerating the expansion of the universe, and astronomers are relieved. 'Thankfully, we have averted this crisis'
- Scientists created one of the largest simulations of our universe ever — about the size of 500,000 HD movies