Summary
A new study suggests that the universe's expansion might be slowing down, rather than speeding up. This challenges previous research and the idea of "dark energy," which was thought to cause the universe to expand faster. Researchers found that the way distances to galaxies are measured might be flawed due to the age of stars.
Key Facts
- Researchers from Yonsei University in South Korea conducted the study.
- They generated evidence that suggests the universe's expansion is slowing down.
- This challenges the concept of "dark energy" and previous Nobel Prize-winning research.
- The study highlights possible errors in how distances to galaxies are calculated using type 1a supernovae.
- Type 1a supernovae were believed to have a consistent brightness used to measure distance.
- New findings indicate supernova brightness is affected by the age of stars, leading to distance errors.
- The study supports an alternative model (BAO+CMB) over the traditional Big Bang model (Lambda-CDM).
- This model agrees with findings from the Dark Energy Spectroscopic Instrument (DESI) project.
