![](https://image.tmdb.org/t/p/w200/jqxJFxSvBpecK34CbD45rUbSlqm.jpg)
Michael J. Massimino
Michael J. Massimino is an American professor of mechanical engineering at Columbia University and a former NASA astronaut.
Michael J. Massimino is an American professor of mechanical engineering at Columbia University and a former NASA astronaut.