Retired NASA astronaut Nicole Stott watches and rates the realism of how outer space is portrayed in movies. Stott breaks down what would actually happen if you went outside in space without a helmet, as seen in "Guardians of the Galaxy Vol. 3," starring Chris Pratt, Zoe Saldaña, and Bradley Cooper. She details what went wrong with the Apollo 13 mission's lunar module and how the crew returned to Earth in "Apollo 13," starring Tom Hanks, Kevin Bacon, and Bill Paxton. She discusses how fires spread in microgravity in "Gravity," starring Sandra Bullock and George Clooney. She explains the challenges of docking to a space station in "Interstellar," starring Matthew McConaughey, Anne Hathaway, and Matt Damon. She talks about how lunar rovers work in "Ad Astra," starring Brad Pitt. She separates fact from fiction in what would happen if you collided with an asteroid in "Armageddon," starring Ben Affleck, Bruce Willis, and Liv Tyler. She highlights the portrayals of two pioneering astronaut...