![Henrietta Leavitt Image source: American Institute of Physics Henrietta Leavitt Image source: American Institute of Physics](http://www.timeone.ca/wp-content/uploads/2012/06/Henrietta-Leavitt.jpg)
Image source:
American Institute of Physics
Henrietta Leavitt was an American astronomer who devised the ‘standard candle’ that is used to measure vast distances in space.
Image source:
American Institute of Physics
Henrietta Leavitt was an American astronomer who devised the ‘standard candle’ that is used to measure vast distances in space.