Task: Text Simplification
Input (English): In 1903 , he received the Nobel Prize in Physics with his wife , Marie Skłodowska-Curie , and Henri Becquerel , " in recognition of the extraordinary services they have rendered by their joint researches on the radiation phenomena discovered by Professor Henri Becquerel " .
Output (English): He shared the 1903 Nobel Prize in Physics with his wife , Marie Curie and Henri Becquerel , for the work on ' spontaneous radioactivity ' which Becquerel discovered .