Thanks so much Tom for pointing this out.
Daniela Pucci was a tenured assistant professor at MIT, who since her time as a graduate student lead a double life - working towards her PhD by day and dancing tango by night. Her passion for the tango eventually took over her life and although successful in her science career she quit the MIT faculty to dedicate her life to dancing.
Here is an interview with her:
Here is a video of her dancing with her partner Luis: