Dossier
universe expansion
Coverage of universe expansion in the Nexus archive.
- Dark matter’s secret force does the opposite of what scientists expected
Dark matter particles may interact through a hidden force that causes them to cluster, but this force also reduces their effective mass as the Universe expands. This unexpected effect weakens dark matter's gravitational influence, slowing the growth of cosmic structures instead of accelerating it.
- 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.
- Dark energy is still accelerating the expansion of the universe, and astronomers are relieved. 'Thankfully, we have averted this crisis'
Dark energy is still accelerating the expansion of the universe, and astronomers are relieved. They express gratitude for having averted a potential crisis related to cosmic expansion.