Multiple choice general knowledge science & technology

Pluto was discovered by ?

  1. William Herschel

  2. John Kepler

  3. Hipparchus

  4. Clyle Tombaugh

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pluto was discovered by Clyde Tombaugh in 1930 at the Lowell Observatory in Arizona. The name in the question appears to be a typo for 'Clyde.' Tombaugh was a 24-year-old amateur astronomer when he made this historic discovery.