NASA Will Conduct Second Artemis II WDR on Thursday
NASA will conduct a second Wet Dress Rehearsal (WDR) on Thursday in preparation for the launch of Artemis II. The nearly 50-hour test actually begins Tuesday evening as launch teams conduct tests and fill the Space Launch System rocket with propellant. The simulated launch window opens at 8:30 pm ET on Thursday. The first Artemis II WDR on February 2 ended early because of hydrogen leaks, but NASA has replaced seals and is ready to try again.