Jansky noise, high frequency static disturbances of cosmic origin

Karl Guthe Jansky, an American physicist, radio engineer and discoverer of radio waves emanating from the Milky Way

Jansky, a lunar crater, named after Karl Guthe Jansky

Jansky (symbol Jy), a non-SI unit of electromagnetic flux, named after Karl Guthe Jansky

Jan Janský, a Czech serologist, neurologist and psychiatrist, credited with the first classification of blood into the four types