One of the four RS-25 engines now being bolted into the core stage of NASA’s next moon rocket is not new hardware at all.

NASA’s Space Launch System (SLS) is ready to fly with its four shuttle-era engines. The rocket, outfitted with the RS-25 engines, recently passed a critical milestone that put the integrated system to ...

Real Images vs Space Engine puts authentic astronomy imagery alongside computer generated scenes from Space Engine for a 15 image observation test. The goal is simple: decide which space visuals are ...

The Space Shuttle was and forever will be a very special vehicle in the history of space exploration. Over the course of three decades starting in 1981, the small fleet of spaceplanes took to the sky ...

The reusability of different parts of a space rocket has opened the doors to a literal flood of launches to Earth orbit and beyond. Thanks to the fact that space companies now no longer have to make a ...

An artist’s illustration of Intuitive Machines’ Nova-C lunar lander, which will carry Tipping Point technology demonstrations funded by NASA’s Space Technology Mission Directorate, on the Moon. Credit ...

The sixth flight of SpaceX’s giant Starship rocket, set for takeoff on Tuesday from South Texas, will test the vehicle’s limits in new ways. Most importantly, SpaceX will attempt to briefly reignite ...