If solved
Fate of the Universe Known
Whether dark energy stays constant or changes decides if the universe expands forever, tears apart or collapses.
Open in the interactive tree →Precise measurements of the expansion history from DESI, Euclid, the Rubin Observatory and the Roman telescope should show whether dark energy is a constant or evolves. That fixes the far future of the cosmos and resolves the Hubble tension one way or the other.
What it brings
- A prediction of the long-term future of the cosmos
- Precision cosmology with a trustworthy expansion history
- A test of new physics in the vacuum