Studies in solar physics were in the sphere of the scientific interests of S.I. Syrovatskii covering a wide range of problems, and the goal of these studies was to obtain a unified picture of physical processes on the Sun. Observations from spacecraft provide more and more detailed information about the phenomena and processes occurring on the Sun, stimulating the construction of physical models and giving a deeper understanding of how the Sun is structured and how it works. An overview of space-based and extra-atmospheric studies of the Sun is given, covering all layers of the solar atmosphere from the convective zone and the photosphere to the solar corona and solar wind.

Correspondence should be addressed to Keywords: Sun, space-based research, magnetic fields, flares, solar wind PACS: 07.87.+v, 96.60.−j (all) DOI: 10.3367/UFNe.2025.03.039920 URL: https://ufn.ru/en/articles/2025/8/e/ 001606309600005 2-s2.0-105016787239 2025PhyU...68..807K Citation: Kuznetsov V D "Space-based and extra-atmospheric studies of the Sun" Phys. Usp. 68 807–822 (2025) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Received: 30th, June 2025, accepted: 5th, March 2025 Оригинал: Кузнецов В Д «Космические и внеатмосферные исследования Солнца» УФН 195 858–874 (2025); DOI: 10.3367/UFNr.2025.03.039920