https://www.cnet.com/news/why-nasa-manned-mars-missions-start-with-the-moon/

Now celebrating its 60th anniversary, NASA hopes to launch an unmanned Orion spacecraft around the moon in 2020. In 2023, another will carry astronauts for the first time, looping far behind the moon's dark side, in between making two close passes of its surface.

There's an echo of the past here. This room, called High Bay, is where NASA worked on the Apollo spacecraft in the 1960s, and the facility is now known as the Neil Armstrong Operations and Checkout Building, after the first human to set foot on the moon. Then as now, the goal was to achieve things never done before, to expand humanity's reach into space.