A new study by IIA astronomers has revealed crucial insights into how multiple successive solar blasts known as Coronal Mass Ejections (CMEs) have interacted with each other and evolved thermally en route from the Sun to Earth. This occurrence triggered the most intense space weather event in the last two decades, which was observed on 10th May 2024. These findings offer a major step forward for improving space weather forecasting models, particularly in predicting the impact of complex CME events on Earth's magnetosphere.

This is based on the paper titled "Evolution of the interacting coronal mass ejections that drove the great geomagnetic storm of 10 May 2024", by Soumyaranjan Khuntia, Wageesh Mishra, and Anjali Agarwal, 2025, Astronomy and Astrophysics, 698, A79.

Press release by PIB published here.

Press release issued by DST here.

Download the paper from here.