Space Launch System
134 articles
VideoIn a step closer to launch, NASA’s Artemis 1 moon rocket rolls back to hangar
NASA's powerful new Space Launch System moon rocket was hauled from its launch pad back to the Vehicle Assembly Building at the Kennedy Space Center Saturday for final repairs, testing and closeouts, moving closer to liftoff later this summer after completing a fueling demonstration last month.

NASA targeting late summer launch for first Artemis moon rocket
With a series of practice countdowns complete, NASA managers said Friday the powerful Space Launch System rocket could be ready for its first test flight in late August or early September to send an unpiloted Orion crew capsule around the moon.

NASA not planning another Artemis 1 countdown dress rehearsal
Forgoing another countdown rehearsal, NASA plans to return the first Space Launch System rocket to its assembly hangar at the Kennedy Space Center next week for a hydrogen leak repair and continued preparations for liftoff on the Artemis 1 moon mission.
VideoLive coverage: NASA runs another countdown rehearsal for SLS moon rocket
NASA ran through a countdown rehearsal for the Space Launch System moon rocket Monday at the Kennedy Space Center in Florida. The launch team loaded more than 750,000 gallons of super-cold liquid hydrogen and liquid oxygen into the more than 30-story-tall rocket, a key test before a demonstration flight later this year.
VideoNASA tries again to complete moon rocket’s practice countdown
Countdown clocks began ticking Saturday for NASA's fourth attempt to complete a dress-rehearsal countdown and fueling test of its Space Launch System moon rocket, a requirement before the huge booster can be cleared for launch on its long-awaited maiden flight.

Photos: Artemis 1 rocket hauled to launch pad for another countdown rehearsal
NASA's Artemis 1 moon rocket rolled out to pad 39B at the Kennedy Space Center on June 6, preparing for another countdown rehearsal later this month to try loading cryogenic propellants into the massive launcher.

NASA’s SLS moon rocket returns to launch pad for more testing
NASA's first Space Launch System moon rocket rolled out to its launch pad early Monday at the Kennedy Space Center for another attempt later this month to fully load it with super-cold propellants, the culmination of a countdown rehearsal officials aim to complete before moving forward with launch later this summer.

NASA plans Artemis 1 moon rocket retest around June 19
NASA plans to haul its huge Space Launch System moon rocket back to the launch pad June 5-6 for a fourth attempt to load it with 730,000 gallons of supercold propellants in a dress-rehearsal countdown to clear the way for a maiden test flight later this summer, officials said Friday.

NASA hopeful about staging fourth moon rocket fueling test in early June
Engineers are making progress resolving mostly ground-system problems that derailed three earlier attempts to fuel the agency's new Space Launch System moon rocket for a dress rehearsal countdown. NASA managers said last week they're hopeful about making a fourth attempt by mid-June.

NASA’s moon rocket rolls back to Vehicle Assembly Building for repairs
NASA rolled the giant new rocket for the Artemis 1 moon mission off the launch pad back inside the Vehicle Assembly Building before dawn Tuesday at the Kennedy Space Center. Officials hope to complete repairs in time to launch the Artemis 1 test flight to the moon no earlier than August, about two months later than previously scheduled.