NASA's Artemis 2 moon mission is in trouble again after teams discovered a helium issue within the SLS rocket following successful wet dress rehearsal

A critical rocket test that will help determine when NASA can launch its first human moon mission in more than five decades appears to be on track after cold weather in Florida prompted a two-day delay. NASA has been preparing to conduct a prelaunch ...

NASA is conducting a critical test ahead of its Artemis II launch, called a wet dress rehearsal. During the dress rehearsal, engineers fill the rocket with 700,000 gallons of propellant and conduct a simulated countdown-to-launch window. Teams conduct a ...