Henri Becquerel

Profession: Physicist and Nobel Laureate

Biography: The first person to discover evidence of radioactivity.

Along with Marie Skłodowska-Curie and Pierre Curie, Becquerel received the 1903 Nobel Prize in Physics.

The System International (SI) unit for radioactivity, the becquerel (Bq), is named after him, as are craters called Becquerel on the Moon and on Mars.

Born: December 15, 1852
Birthplace: Paris, France
Star Sign: Sagittarius

Died: August 25, 1908 (aged 55)