Robert McNees on Nostr: Karl Jansky invented the field of radio astronomy #OTD in 1932. During a solar ...
Karl Jansky invented the field of radio astronomy #OTD in 1932.
During a solar eclipse he saw no change in the faint radio hiss he'd been monitoring, which ruled out the sun as a source. He soon attributed this "star noise" to large ionized gas clouds near the center of the Milky Way.
Published at
2023-08-31 14:12:52Event JSON
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