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Cold, dense clouds in the interstellar medium of our Galaxy are 4–5 orders of magnitude denser than their diffuse counterparts. Our Solar System has most likely encountered at least one of these dense clouds during its lifetime. However, evidence for such an encounter has not been studied in detail yet. Here we derive the velocity field of the Local Ribbon of Cold Clouds (LRCC) by modelling the 21 cm data from the HI4PI survey, finding that the Solar System may have passed through the LRCC in the constellation Lynx 2–3 million years ago. Using a state-of-the-art simulat...

India's Aditya-L1 solar mission's payload, the Plasma Analyser Package for Aditya (PAPA), has successfully detected the impact of coronal mass ejections (CMEs), according to ISRO. The PAPA sensors have been able to measure solar wind electrons and ions, as well as the direction of arrival of solar wind particles. The data collected by PAPA revealed the occurrence of CME events on December 15, 2023, and during February 10-11, 2024.

The payload -- Plasma Analyser Package for Aditya (PAPA) -- is an energy and mass analyser designed for in-situ measurements of solar wind electrons and ions in the low energy range

Get latest articles and stories on India at LatestLY. The Indian Space Research Organisation (ISRO) said on Friday the Plasma Analyser Package for the Aditya (PAPA) payload onboard the Aditya-L1 has been operational and performing nominally. India News | PAPA Payload Aboard Aditya-L1 Detects Solar Wind Impact of Coronal Mass Ejections, Says ISRO.

Here we explore how Lagrange points work, who discovered them, and the Trojan asteroids that lurk within them.