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

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 Space Launch System rocket's RS-25 engine was fired up for the “final round of certification testing ahead of production ...

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

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

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

Temperatures dropped into the 20s over the weekend, yet NASA teams are hard at work preparing for the historic Artemis II ...

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

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

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