SciTech Express

In a groundbreaking discovery that may significantly alter our understanding of solar dynamics and space weather, an international team of solar physicists, led by the Indian Institute of Astrophysics (IIA), has mapped giant tides of plasma flowing beneath the surface of the sun. These hidden plasma currents, located in a zone known as the near-surface shear layer (NSSL), have been shown to shift with the sun’s magnetic activity and could be a critical piece in solving the complex puzzle of space weather phenomena that affect life on Earth. The research, published in the prestigious Astrophysical Journal Letters , was carried out in collaboration with experts from Stanford University and the U.S. National Solar Observatory (NSO). The findings not only uncover previously invisible solar plasma flows , but also link them with magnetic field changes and solar cycles, offering new insight into the sun’s mysterious behavior. The Hidden Engine Beneath the Sun: What is the Near-Surface S...

Aditya-L1 Captures First-Ever Image of Solar Flare ‘Kernel’: A Breakthrough in Solar Science India's first dedicated solar mission, Aditya-L1 , has achieved a significant milestone in space research. The Indian Space Research Organisation (ISRO) announced that the mission's Solar UltraViolet Imaging Telescope (SUIT) successfully captured the first-ever image of a solar flare 'kernel' , marking a historic breakthrough in solar physics. This observation provides deep insights into the Sun’s explosive activities and their far-reaching impacts on Earth's space environment. 1. Understanding Solar Flares and the ‘Kernel’ Phenomenon What is a Solar Flare? A solar flare is a sudden and intense burst of radiation emitted from the Sun’s surface due to the sudden release of magnetic energy. These flares can be classified into different categories (A, B, C, M, and X) based on their intensity, with X-class flares being the most powerful. What is a Flare Kernel? The ‘kernel’ ...

Kodaikanal Solar Observatory (KSO) – 125 Years of Solar Research The Kodaikanal Solar Observatory (KSO) recently celebrated its 125th anniversary at an International Solar Conference , highlighting its pioneering contributions to solar studies . About Kodaikanal Solar Observatory (KSO) Established : 1899 Operated by : Indian Institute of Astrophysics (IIA) Location : Kodaikanal, Palani Hills, Tamil Nadu Reason for Selection : Proximity to the equator   Dust-free, high-altitude location   Ideal conditions for continuous solar observations . Key Objectives of KSO Solar Observation & Research Monitors the Sun's activities , including: Sunspots & solar flares   Coronal mass ejections (CMEs)   Solar magnetic fields   Climate & Monsoon Studies Collects solar radiation data to study its impact on Earth's climate and Indian monsoon patterns . Longest Solar Data Archive Houses over a century of solar data , crucial for studying long-term solar cycle varia...