10 July

  • 1962 The first ever communications satellite, Telstar, is launched
  • 1832 Birth of Alvan Graham Clark, the first person to observe Sirius B, the first known white dwarf star
  • 1920 Birth of Owen Chamberlain, awarded the 1959 Nobel Prize jointly with Emilio Segrè for their discovery of the antiproton
  • Physics in Perspective
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