The Space Launch System rocket's RS-25 engine was fired up for the “final round of certification testing ahead of production of an updated set of the engines," according to NASA. The test occurred at ...

In response to a query from Ars about the engine test anomalies, Rocket Lab Chief Executive Officer Pete Beck downplayed concerns.

NASA has been forced to delay a critical fueling test for its Artemis 2 moon rocket due to unusually cold weather forecasted ...

A water system activation at the Thad Cochran Test Stand (B-2) on Jan. 30 at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, helped capture critical data to support testing a new SLS ...

The so-called " wet dress rehearsal " will load the Space Launch System with 700,000 gallons of ultra‑cold propellants at the ...

NASA tested a Space Launch System rocket RS-25 engine at the Stennis Space Center. Credit: NASA Stennis Space Center ...

NASA is fueling its new moon rocket in one final make-or-break test before sending astronauts on a lunar fly-around ...

If the fueling test goes well, the Artemis II flight around the moon and back could take off as early as Feb. 8.

NASA plans to test the planned leak repair with a second dress rehearsal fueling test later this month.

NASA vs SpaceX rockets compared on cost, technology, and performance, revealing how reusability and innovation reshape modern spaceflight missions.

NASA is fueling its new moon rocket in one final make-or-break test before sending astronauts on a lunar fly-around. The ...