Editing Solar flare (section)

=== Radio observations ===
{{Further|Solar radio emission}}
{{Unreferenced section|date=June 2024}}
During [[World War II]], on February 25 and 26, 1942, British radar operators observed radiation that [[James Stanley Hey|Stanley Hey]] interpreted as solar emission. Their discovery did not go public until the end of the conflict. The same year, [[George Clark Southworth|Southworth]] also observed the Sun in radio, but as with Hey, his observations were only known after 1945. In 1943, [[Grote Reber]] was the first to report radioastronomical observations of the Sun at 160&nbsp;MHz. The fast development of [[radioastronomy]] revealed new peculiarities of the solar activity like ''storms'' and ''bursts'' related to the flares. Today, ground-based radiotelescopes observe the Sun from c. 15&nbsp;MHz up to 400&nbsp;GHz.