USSF-87, launching from SLC-41 in Florida, is flying the Geosynchronous Space Situational Awareness Program (GSSAP) 7 and 8 ...

The 156-foot-long five-segment solid rocket motor produced upwards of 4 million pounds of thrust during the test.

NASA’s Space Launch System (SLS) is ready to fly with its four shuttle-era engines. The rocket, outfitted with the RS-25 ...

Musk has been critical of the SLS rocket, calling it fully expendable. He argued that each launch costs around $1 billion, ...

Here’s what to expect from Project Kuiper’s first full-scale satellite launch United Launch Alliance will send 27 Kuiper satellites into low Earth orbit as we begin a full-scale deployment of our ...

Northrop Grumman saw some fiery drama during a test of a more powerful version of the solid rocket booster that would be used if NASA’s Artemis program ever gets to its ninth launch using the… ...

NASA tested new SLS hardware twice over the last week for Moon missions that might never happen, Ars Technica reports. Last Friday, test-fired a hydrogen-fueled RS-25 rocket in Mississippi that ...

Flying high Rocket Report: SpaceX’s dustup on the border; Northrop has a nozzle problem NASA has finally test-fired the first of its new $100 million SLS rocket engines.

A solid rocket engine for NASA's Space Launch System rocket experienced an anomaly during a static fire test at the booster's Northrop Grumman facilities June 26.

While the fate of NASA’s Space Launch System (SLS) rocket hangs in the balance, the agency is pushing ahead with tests of new components needed to launch the vehicle toward the Moon. The latest ...

NASA’s newest RS-25 rocket engine, numbered 20001, lit up the night sky on June 20 at the Fred Haise Test Stand inside the Stennis Space Center in Bay St. Louis, Mississippi. Engineers ran the engine ...

The motor is part of the Booster Obsolescence and Life Extension program, designed to support future Artemis missions beyond the initial moon landings. NASA's SLS rocket uses two five-segment solid ...