Space Launch System (SLS) Archives

April 2, 2022April 5, 2022 by Matt Williams

NASA Will be Testing SLS Over the Weekend

The Space Launch System (SLS) has just one more hurdle to clear before this summer’s historic launch. This is known as the Wet Dress Rehearsal, where the fully-stacked SLS and Orion spacecraft will conduct a series of operations at the NASA Kennedy Space Center in Florida. This test follows the arrival of the SLS to Launch Complex 39B after making its big rollout on March 17th from the Vehicle Assembly Building (VLB).

The Wet Dress Rehearsal will run from Friday, April 1st, through Sunday, April 3rd, and will see the Artemis I launch team load propellant into the rocket’s tanks, conduct a full launch countdown, demonstrate the ability to recycle the countdown clock, and also drain propellants to give them an opportunity to practice the timelines and procedures they will use for launch. The weekend-long event will be live-streamed via the Kennedy Newsroom YouTube channel.

March 21, 2022May 11, 2022 by Matt Williams

Pearl Jam's Eddie Vedder Provides the Music for NASA's new SLS Video

For fans of Eddie Vedder, Pearl Jam, and space exploration, this video will require very little explanation. But just in case some people haven’t seen it yet, this musical performance was a tribute to the long-awaited roll-out of the fully-stacked Space Launch System (SLS) at the NASA Kennedy Space Center in Florida. It’s guaranteed to give you goosebumps and maybe even bring a tear to your eye!

March 18, 2022March 18, 2022 by Nancy Atkinson

Now That is a Big Rocket. Space Launch System Rolls out to the Launch pad for a Series of Tests

NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard is seen illuminated by spotlights atop a mobile launcher at Launch Complex 39B, Friday, March 18, 2022, after being rolled out to the launch pad for the first time at NASA’s Kennedy Space Center in Florida. Credit: NASA/Joel Kowsky

Under the full Moon, NASA’s Space Launch System (SLS) rocket rolled out to the launchpad for the first time. The journey began at the iconic Vehicle Assembly Building at Kennedy Space Center, with the gigantic stack of the mega rocket arriving at Launch Pad 39B in preparation for a series of final checkouts before its Artemis I test flight.

The four-mile trip for SLS and the Orion spacecraft, on top of the crawler-transporter took 10 hours and 28 minutes, and the 3.5-million-pound rocket and spacecraft arrived at the pad at 4:15 a.m. on March 18.

March 15, 2022March 15, 2022 by Andy Tomaswick

LEGO Releases the new Rocket Launch Center set, Recreating the Artemis Moon Missions

One way to inspire kids to get interested in STEM is to introduce them to it at an early age. Lego is one of the best gateways to that interest, and the company has been busy churning out space-themed toys for most of its existence. Now another entry has joined that long, distinguished line of interlocking brick system designs – the Rocket Launch Center, #60351.

March 14, 2022March 14, 2022 by Andy Tomaswick

According to a US Auditor, Each Launch of the Space Launch System Will Cost an “Unsustainable” $4.1 Billion

This will likely come as a surprise to no one who has closely watched the development of NASA’s next giant rocket, the Space Launch System (SLS), but it’s going to be expensive to use. Like, really expensive – to the tune of $4.1 billion per launch, according to the NASA Inspector General. That’s over double the original expected launch cost.

February 26, 2022February 26, 2022 by Nancy Atkinson

New Images of Artemis in the VAB; Rollout for SLS Launch Rehearsal Test Now Scheduled for March 17

The stack of the Space Launch System rocket in the Vehicle Assembly Building at Kennedy Space Center. Credit and copyright: Alan Walters, for Universe Today.

Every journey begins with a single step, and the first step of NASA’s return to the Moon begins with a four-mile rollout to the launchpad. NASA announced their target date for rolling out the Space Launch System rocket for the four-mile crawl to the launch pad is March 17. The full rocket stack will spend about a month at the pad undergoing several tests before heading back to the Vehicle Assembly Building. If all goes well with the tests, NASA hopes to launch its uncrewed Artemis test flight, likely by early summer.

August 2, 2021August 2, 2021 by Andy Tomaswick

NASA Chooses Falcon Heavy Over SLS to Launch Europa Clipper, Saving About $2 Billion

The bureaucracy of government control is slowly fading away in space exploration, at least in the US. A series of delays, cost overruns, and imposed requirements have finally started taking its toll on the Space Launch System (SLS), the next generation NASA rocket system. Now, the space agency has finally conceded a point to the commercial launch industry. It has elected to use Space X’s Falcon Heavy to launch one of its upcoming flagship missions – Europa Clipper.

March 29, 2021March 29, 2021 by Matt Williams

This Time NASA’s SLS Hotfire Goes the Full 8 Minutes

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a second hot fire test, Thursday, March 18, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. The four RS-25 engines fired for the full-duration of 8 minutes during the test and generated 1.6 million pounds of thrust. The hot fire test is the final stage of the Green Run test series, a comprehensive assessment of the Space Launch System’s core stage prior to launching the Artemis I mission to the Moon. Photo Credit: (NASA/Robert Markowitz)

When NASA’s Space Launch System (SLS) is fully integrated, assembled, and finished with testing, it will be the most powerful rocket since the Saturn V that carried the Apollo astronauts to the Moon. To get it there, NASA has been conducting a testing campaign known as the Green Run, an 8-step assessment that culminates in a test-firing of all four of the Core’s RS-25 engines (aka. a “Hot Fire” test).

On January 16^th, NASA made its first attempt at a Green Run Hot Fire test at the Stennis Space Center’s B-2 Test Stand in Mississippi, which only lasted for about one minute. Another attempt was made on Thursday, March 18^th, where all four engines fired for 8 minutes and 19 seconds. This successful fire test is a crucial milestone for the SLS and brings it one step closer to sending astronauts back to the Moon.

February 4, 2021February 4, 2021 by Matt Williams

SLS Will be Tested Again in About 3 Weeks

The core stage for the first flight of NASA’s Space Launch System rocket is seen in the B-2 Test Stand during a scheduled eight minute duration hot fire test, Saturday, Jan. 16, 2021, at NASA’s Stennis Space Center near Bay St. Louis, Mississippi. Credits: NASA/Robert Markowitz

In November of 2021, NASA will embark on a new era of space exploration as they make the inaugural launch of the Space Launch System (SLS). When it enters service, this booster will be the most powerful rocket since the Saturn V, which took the Apollo astronauts to the Moon. This is fitting since the SLS will be the rocket returning astronauts to the Moon by 2024 (as part of Project Artemis).

To get the SLS ready for its first launch, NASA has been running the Core Stage through a series of tests designed to test all the systems and components of the heavy-launch system – collectively known as a “Green Run.” The next step in this process will be a second Green Run Hot Fire Test, where all four RS-25 engines on the SLS Core Stage will fire at once to show they can operate as part of a single integrated system.

January 16, 2021January 18, 2021 by Matt Williams

SLS Hot Fire Test Should Have Lasted 8 Minutes, Not 1

Today, at close to 04:30 PM local time (CST), NASA achieved a major milestone with the development of the Space Launch System (SLS) – the heavy launch system they will use to send astronauts back to the Moon and crewed missions to Mars. As part of a Green Run Hot Fire Test, all four RS-25 engines on the SLS Core Stage were fired at once as part of the first top-to-bottom integrated test of the stage’s systems.

This test is the last hurdle in an eight-step validation process before the Core Stage can be mated with its Solid Rocket Boosters (SRBs) and sent on its maiden voyage around the Moon (Artemis I) – which is currently scheduled to happen sometime in November of 2021.