NASA fired up RS-25 engine No. 20001 at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, ...

NASA’s push for a new nuclear rocket engine is not just another upgrade to the hardware we strap to the bottom of spacecraft.

L3Harris Technologies is selling a 60% stake in its space propulsion business to AE Industrial Partners for $845 million, ...

The rise of the commercial space industry precipitated a steeper decline at Rocketdyne. Boeing sold the Rocketdyne division ...

Space agencies are moving closer to a new era of rocket propulsion that could fundamentally change deep-space travel. Nuclear ...

Which US rocket companies achieved the most during 2025? Once again, Ars Technica is here to provide some answers in the form ...

As kids, many of us dreamed of one day jetting into space and exploring the final frontier, but it seems even some adults just can't shake their obsession with space flight. In a year-end report(PDF) ...

When I was an aerospace engineer working on the NASA Space Shuttle Program, trust was mission-critical. Every bolt, every line of code, every system had to be validated and tested carefully, or the ...

The Space Age framed nuclear propulsion as a quiet rethinking of movement, distance, and endurance beyond Earth.

The engines, still attached to the rocket's first stage, had been purposely dropped into the Atlantic Ocean after they had flown 38 miles (61 kilometers) high and burnt through their fuel supply. NASA ...