In this video, we explore the significance of NASA's new 3D printed rocket engine, which is 20-30% more efficient than ...

How do you control a nuclear space propulsion system? Very carefully. To help with this, the Oak Ridge National Laboratory ...

NASA fired up RS-25 engine No. 20001 at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, Mississippi. The test lasted about "eight-and-a-half minutes (500 seconds), the same ...

This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

Standing no more than about 70 feet tall, sounding rockets are much smaller than an average spacecraft that may launch on an orbital flight from major spaceports For comparison, SpaceX's famous ...