Fri Jan 16 14:45:50 UTC 2026: ### Sun’s Core Becomes a Physics Lab: Indian Scientists Test Gravity with Solar Observations

The Story:
Researchers at Tezpur University in Assam have made a groundbreaking discovery using observations of the Sun’s internal movements to test a modified theory of gravity. The study, led by Pralay Kumar Karmakar and Souvik Das, examined how gravity behaves under the Sun’s extreme conditions, marking progress toward understanding the hidden physics within stars. By comparing calculations from the Eddington-inspired Born-Infeld (EiBI) gravity model with four years of data from NASA’s Solar Dynamics Observatory, the team found that even small changes in gravity could significantly affect energy movement and stability inside the Sun, increasing wave speeds and stability by up to 55%.

Key Points:

  • Researchers at Tezpur University in Assam tested a modified theory of gravity using solar observations.
  • The study examined gravity’s behavior under the Sun’s extreme heat and pressure.
  • The research compared calculations from the Eddington-inspired Born-Infeld (EiBI) gravity model with data from NASA’s Solar Dynamics Observatory.
  • Small changes in gravity significantly impacted energy movement and stability inside the Sun, increasing wave speeds and stability by up to 55%.
  • The findings suggest the Sun can act as a natural laboratory for studying broader questions in physics.
  • The research has been accepted for publication in Physical Review E.

Key Takeaways:

  • The Sun’s internal movements can be used to test and refine our understanding of fundamental forces like gravity.
  • Modified theories of gravity, like the Eddington-inspired Born-Infeld (EiBI) model, show promise in explaining phenomena within stars.
  • The research highlights the importance of using observational data from celestial bodies to test and validate theoretical models.
  • This study opens new avenues for studying gravity elsewhere in the universe, using stars as observational guides.
  • DST-INSPIRE program is supporting cutting-edge research in basic sciences in India.

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