Watch how the Space Launch System rocket RS-25 undergoes a core stage engine test-fire. Credit: NASA's Stennis Space Center ...

When planes exceed Mach 1 (the speed of sound, or about 767 miles per hour—1,234 kilometers/hour for those using the metric ...

The lander, Blue Ghost, fired its engines for four minutes Thursday to propel the spacecraft into lunar orbit ahead of a ...

Engineers developed an engine prototype which could reach unprecedented speeds, cutting down interplanetary travel time.

NASA and General Atomics tested the fuel by exposing it to temperatures up to 3,000 Kelvin (4,940 Fahrenheit or 2,727 Celsius ...

Private space company Stoke announces a new design for a rocket engine that could make the Nova launcher's second stage ...

Russia's State Atomic Energy Corporation, Rosatom, recently developed a new spacecraft engine with impressive specifications.

Welcome to Edition 7.31 of the Rocket Report! The unfortunate news this week concerns layoffs. Blue Origin announced a 10 ...

While this latest test doesn’t make nuclear-powered rocket engines viable just yet, it’s an important step on the journey.

Eco-friendly alternatives to fossil fuels are venturing beyond Earth—and into space.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. On the heels of the ...

Boeing warned on Saturday of layoffs in its Space Launch System moon rocket program, saying it expects to have about 400 ...