Trump talks with Lockheed Martin president and CEO Marilyn Hewson, right, and an F-35 test pilot, middle, in front of Lockheed Martin's F-35 fighter jet.
The F-35's advanced features have been praised by many pilots, but its steep price tag and numerous setbacks have taken away some of the fighter jet's luster. At around $400 billion, the F-35 program is the US Defense Department's costliest endeavor.
Source: Bloomberg, Business Insider
An Orion crew module, part of NASA's Space Launch System, was also on display on the South Lawn of the White House.
More than 1,000 companies across the US contributed components and helped build the Orion crew module. In 2014, the unmanned Orion flew 3,600 miles into space and safely returned to Earth.
Source: NASA