NASA is building a brand new rocket for the future of human spaceflight. The Space Launch System (SLS) will take astronauts beyond the low-Earth orbit of the International Space Station to the Moon and eventually Mars. Astronaut Christina Koch, who graduated from NASA’s astronaut training program in 2015, helps us examine the SLS rocket in more detail. 

Quick Facts: 
According to Koch, the SLS Rocket is 322-feet (98-meters) tall.
The rocket can lift 77 tons.
At launch, the rocket has 8.8 million pounds of thrust behind it.