NASA’s rehearsal for Artemis II marks one of the final steps before four astronauts get launched into deep space for the first time since the Apollo program ended.

Moments after liftoff from Florida’s Space Coast early Thursday morning, a shower of sparks emerged in the exhaust plume of United Launch Alliance’s Vulcan rocket. Seconds later, the rocket twisted on its axis before recovering and continuing the climb into orbit with a batch of US military satellites.

Nitrous oxide’s high-speed abilities don’t end with racing cars, as it’s a powerful enough oxidizer to be a practical component of rocket propellant. Since [Markus Bindhammer] is building a hybrid rocket engine, in his most recent video he built and ...

(CNN) — NASA has begun a crucial test Monday of its towering Space Launch System rocket — marking one of the final steps before the vehicle launches four astronauts into deep space for the first time since the Apollo program ended more than five ...