When it comes to rocket engines, one of the most prolific and famous is the RS-25. It's the same rocket engine that would be used for the NASA Artemis moon missions, but the Artemis missions certainly ...

An RS-25 engine performs a static-fire test at NASA's Stennis Space Center Aug. 14. NASA said the test was a success despite ending three minutes early because of a "facility issue." Credit: NASA ...

With NASA Administrator James “Jim” Bridenstine in attendance, Aerojet Rocketdyne marked a significant milestone in efforts to reduce costs on the RS-25 engine that powers NASA’s new rocket, the Space ...

June 23 (UPI) --NASA fired up a full-duration test of its new RS-25 engine that will power the Space Launch System rocket on Artemis missions to the moon, the space agency announced Monday. NASA ...

NASA has been conducting a series of hot fire tests to certify RS-25 engines for use on the Space Launch System rockets that ...

HANCOCK COUNTY, Miss. (WLOX) - On Saturday, NASA completed the sixth RS-25 engine certification test at Stennis Space Center. The successful test marks a halfway point in testing the new engines built ...

HANCOCK COUNTY, Miss. (WLOX) - On Wednesday, a milestone test was conducted at Stennis Space Center for the RS-25 engines that will carry astronauts back to the moon and beyond. The latest blast of ...

It’s time to gather around a digital fire and celebrate the holidays in style with a Yule log video. But this isn’t just any old Yule log. The official NASA Yule log video stars four RS-25 rocket ...

NASA, Aerojet Rocketdyne, and Syncom Space Services have conducted the first hot-fire test of a flight model RS-25 engine controller on Thursday afternoon. The eight-minute long test firing occurred ...

Following closely on the heels of certifying one set of RS-25 engine upgrades and updates for the first Space Launch System (SLS) flights, NASA and RS-25 prime contractor Aerojet Rocketdyne have begun ...