Can potatoes actually grow on Mars? That’s just one of many questions audiences may wonder while watching “The Martian.” The movie – about an astronaut left behind during a mission to the Red Planet – is nominated for seven Academy Awards. So this week, our Big Screen team continues our Oscar preview series by talking about the science of “The Martian” with Mustapha Ishak, an astrophysicist at UT-Dallas.

Be sure to subscribe to The Big Screen on iTunes. Stream this week’s episode or download it.