Summary:

- The New Horizons spacecraft has measured the faintest level of background light in the universe, providing insights into the nature of dark matter and dark energy.
- The observations suggest that the universe is even darker than previously thought, with the faint glow from distant galaxies and other sources making up only a small fraction of the total background light.
- This data can help astronomers better understand the distribution and properties of dark matter, as well as the role of dark energy in the evolution of the cosmos.