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# IUCAA Researchers Use Mira Stars to Refine Universe's Expansion Rate
- URL: https://gujarat.news/iucaa-researchers-use-mira-stars-to-refine-universes-expansion-rate/
- Published: 2025-09-03T21:35:07.000Z
- Updated: 2025-09-03T21:35:06.000Z
- Author: Newsdesk
- Tags: Astronomy, Cosmology, Hubble Constant, Mira Stars, Universe Expansion

Researchers at IUCAA, led by Anupam Bhardwaj, have used Mira stars for the first time to measure the Hubble constant with 3.7% accuracy. This new method provides an independent check on existing measurements of the universe's expansion rate. The study is crucial for addressing the 'Hubble tension,' a significant discrepancy in cosmological measurements, and was published in the Astrophysical Journal.

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**Source:** [Times of India](https://timesofindia.indiatimes.com/city/pune/iucaa-researchers-use-mira-stars-to-measure-rate-of-universes-expansion/articleshow/123621899.cms?ref=gujarat.news)