In this science clip from Fueled By Death Cast, I talk about NASA's plans to send a helicopter to Mars aboard the next Mars rover in 2020. The problem with testing such a vehicle is that the gravity and atmosphere are so much different on the red planet, NASA had to virtually create the conditions in a lab. Then, the first ever all-women spacewalk was canceled due to not having the safest equipment on board the International Space Station. I break down exactly why and just how dangerous spacewalks are, and astronaut Anne McClain talks about the decision on the space station.