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Astronomical events

  • SupernovaA supernova is a powerful and luminous explosion of a star. This event occurs during the last evolutionary stages of a massive star or when a white dwarf is…
  • Big BangIn 1922, Russian mathematician Alexander Friedmann derived equations from Einstein's field equations that suggested the universe might be expanding.
  • Cosmic inflationIn 1978, particle physicist Alan Guth began investigating why no magnetic monopoles appeared in the universe. He worked at Cornell University when he…