Milestone: outliving Ralph Asher Alpher.
Ralph Asher Alpher was an American cosmologist, who carried out pioneering work in the early 1950s on the Big Bang model, including Big Bang nucleosynthesis and predictions of the cosmic microwave background radiation.
Facts: Wikidata and Wikipedia. Ages are calculated, not estimated.
Enter your birthday to see the last milestones you passed. Free – we keep your birthday only if you sign up, and your next milestone comes as a surprise.