1. United States astronomer who discovered the planet Pluto (1906-1997)
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How To Use Tombaugh In A Sentence

  • America quickly embraced Pluto and Tombaugh as icons worthy of scientific superstardom, and the rest of the world quickly followed suit.
  • Pluto was discovered by Clyde Tombaugh in 1930
  • Ironically, Pluto is so itteh bitteh that it doesn't really affect Uranus or Neptune at all: Lowell was wrong on that count, which makes it even more amazing that Tombaugh found the darn thing.
  • Several years ago, shortly after Clyde Tombaugh died at the age of ninety, Pluto's planethood was thrown into question.
  • February of 2010 marks the 80th anniversary of the discovery of Pluto by American astronomer Clyde Tombaugh.
  • In 1930, a young astronomer named Clyde Tombaugh found Pluto.
  • Tombaugh's highly detailed powers of observation led him to discover Pluto in 1930.
  • In the meantime, I'm gonna take a moment of silence on Saturday to honor Tombaugh and his persistent blinking.
  • In 1930, astronomer Clyde Tombaugh discovered the dwarf planet Pluto while looking at photographs of the night sky.
  • American astronomer Clyde Tombaugh announces discovery of Pluto at Lowell Observatory.
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