# Aditya-L1 helps decode coronal mass ejection expansion 2026-11-04T18:41:14+00:00 | India | Indian Opinion Desk Corroboration: 1 independent outlet Indian scientists using ISRO’s Aditya-L1 solar observatory have gained new insights into how coronal mass ejections (CMEs) expand near the Sun, according to a PIB release. The team combined spectroscopic data from the Visible Emission Line Coronagraph (VELC) onboard Aditya-L1 with images from NASA’s Solar Dynamics Observatory and 3D modelling. A CME is a burst of hot, magnetised plasma released from the Sun’s corona. When directed toward Earth, they can disrupt satellites and communications. VELC, developed by the Indian Institute of Astrophysics (IIA) with ISRO support, uses Doppler spectroscopy to measure plasma motion along the line of sight, overcoming the limitation of conventional coronagraphs that image CMEs only in two dimensions. Separately, a new silicon chip allowing terahertz waves to pass with little loss while carrying data at 100 Gbit/s points to compact circuits for future 6G technologies, PIB said. Terahertz waves (0.1 to 10 THz, wavelength 3 mm to 30 μm) lie between microwaves and infrared. ## Indian Opinion Analysis The Aditya-L1 finding directly improves CME speed and trajectory prediction, which is critical for safeguarding satellites and power grids from geomagnetic storms. VELC’s spectroscopic capability fills a gap that imaging-only coronagraphs leave open. The terahertz chip breakthrough, meanwhile, addresses a key engineering barrier for 6G. Both results are early-stage: the CME model needs further validation, and the chip remains a lab demonstration before commercial deployment. ## Coverage - indianexpress.com Straight quiz format with PIB-sourced explanations, no editorial framing. This brief was synthesised by AI from the source linked above. Tags: 6G, Aditya L1, Indian Institute of Astrophysics, ISRO, NASA, VELC Canonical: https://indianopinion.org/aditya-l1-helps-decode-coronal-mass-ejection-expansion/ License: Summary and commentary (c) Indian Opinion, reusable with attribution. Facts belong to the linked sources. Cite: https://indianopinion.org/aditya-l1-helps-decode-coronal-mass-ejection-expansion/#story-in-brief How this brief was made: an AI model read the report linked above and wrote this summary and analysis, which were published automatically. Published briefs are sampled every hour by an automated quality check; the editor verifies its findings and approves corrections, and corrected briefs carry a dated correction line. We do no original reporting. Methodology: https://indianopinion.org/ai-use-policy/