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Getting to Mars: A New Rocket for the Journey

Do you know what the structural backbone is of our new rocket, the Space Launch System? If you answered the core stage, give yourself a double thumbs up! Or better yet, have astronaut Scott Kelly do it!

We’re on a journey to Mars. For bolder missions to deep space, we need a big, powerful rocket like SLS to take astronauts in the Orion spacecraft to places we’ve never gone before. The core stage is a major part of that story, as it will house the fuel and avionics systems that will power and guide the rocket to those new destinations beyond Earth’s orbit. Here’s how:

It’s Big, and It’s Fast.

The core stage will be the largest rocket stage ever built and is under construction right now at our Michoud Assembly Facility in New Orleans. It will stand at 212 feet tall and weigh more than 2.3 million pounds with propellant. That propellant is cryogenic liquid hydrogen and liquid oxygen that will feed the vehicle’s RS-25 engines. In just 8.5 minutes, the core stage will reach Mach 23, which is faster than 17,000 mph!

It’s Smart.

Similar to a car, the rocket needs all the equipment necessary for the “drive” to deep space. The core stage will house the vehicle’s avionics, including flight computers, instrumentation, batteries, power handling, sensors and other electronics. That’s a lot of brain power behind those orange-clad aluminum walls. *Fun fact: Orange is the color of the rocket’s insulation.

It’s a Five-Parter.

The core stage is made up of five parts. Starting from the bottom is the engine section, which will deliver the propellants to the four RS-25 engines. It also will house avionics to steer the engines, and be an attachment point for the two, five-segment solid rocket boosters. The engine section for the first SLS flight has completed welding and is in the final phases of manufacturing at Michoud.

Next up is the liquid hydrogen tank. It will hold 537,000 gallons of liquid hydrogen cooled to -423 degrees Fahrenheit. Right now, engineers are building the tank for the first SLS mission. It will look very similar to the qualification test article that just finished welding at Michoud. That’s an impressive piece of rocket hardware!

The next part of the core stage is the intertank, which will join the propellant tanks. It has to be super strong because it is the attachment point for the boosters and absorbs most of the force when they fire 3.6 million pounds of thrust each. It’s also a “think tank” of sorts, as it holds the SLS avionics and electronics. The intertank is even getting its own test structure at our Marshall Space Flight Center in Huntsville, Alabama.

And then there’s the liquid oxygen tank. It will store 196,000 gallons of liquid oxygen cooled to -297 degrees. If you haven’t done the math, that’s 733,000 gallons of propellant for both tanks, which is enough to fill 63 large tanker trucks. Toot, toot. Beep, beep! A confidence version of the tank has finished welding at Michoud, and it’s impressive. Just ask this guy.

The topper of the core stage is the forward skirt. Funny name, but serious hardware. It’s home to the flight computers, cameras and avionics. The avionics system is being tested right now in a half-ring structure at the Marshall Center.

You can click here for more SLS core stage facts. We’ll continue building, and see you at the launch pad for the first flight of SLS with Orion in 2018!

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

ORCHESTRA STEREOTYPES

FRONT DESK 1st VIOLINS:

FRONT DESK 2nd VIOLINS:

OTHER VIOLINS:

VIOLAS:

CELLOS:

DOUBLE BASSES:

OBOES:

#tuning

FLUTES:

CLARINETS:

BASSOONS:

TRUMPETS:

TROMBONES:

TUBA:

TIMPANI:

OTHER PERCUSSION:

apparently i’m not enthusiastic enough about satan for google 

Zelda’s Lullaby from The Legend of Zelda w/ Maple 😋🐶