A Houston company that's creating the next generation of space exploration technology is celebrating a new milestone of one of its technologies.

Intuitive Machines reports that its VR900 completed a full-duration hot-fire test, qualifying it for its IM-2 lunar mission. With the qualification, the company says its VR3500, an engine designed for larger cargo class landers, also advances in development.

The engine technology is designed, 3D-printed, and tested all at Intuitive Machines' Houston facility, which opened in the Houston Spaceport last year.

Intuitive Machines CEO Steve Altemus says in a news release that the company's goal was to lead the way in scalable deep space engines as the industry heads toward lunar missions.

“This validated engine design meets current mission demand and paves the way for our VR3500 engine for cargo delivery such as lunar terrain vehicles, human spaceflight cargo resupply, and other infrastructure delivery," Altemus continues. "We believe we’re in a prime position to build on our successful development and apply that technology toward current contracts and future lunar requirements for infrastructure delivery.”

Earlier this year, Intuitive Machines was one of one of three companies selected for a $30 million NASA contract for the initial phase of developing a rover for U.S. astronauts to traverse the moon’s surface.

Another Houston company has seen success with its engine testing. In March, Venus Aerospace announced that it's successfully ran the first long-duration engine test of their Rotating Detonation Rocket Engine in partnership with Defense Advanced Research Projects Agency, or DARPA.