It’s time to bust out the sunscreen! 😎 Did you know the thermal protection applied to the Space Launch System hardware “tans” from a canary yellow to a burnt orange over time? Slide to see what the liquid hydrogen tank test article looked like at NASA’s Michoud Assembly back in December compared to what it looks like in the test stand at NASA’s Marshall Space Flight Center now. The liquid hydrogen tank is part of the rocket’s core stage that is more than 200 feet tall with a diameter of 27.6 feet, and stores cryogenic liquid hydrogen and liquid oxygen that will feed the vehicle’s RS-25 engines. The liquid hydrogen tank test article is structurally identical to the flight version of the tank that will comprise two-thirds of the core stage and hold 537,000 gallons of supercooled liquid hydrogen at minus 423 degrees Fahrenheit. Dozens of hydraulic cylinders in the 215-foot-tall test stand have been pushing and pulling the tank, subjecting it to the same stresses and loads it will endur...