NASA To Roll Back SLS 

For Repairs

NASA Announced Late April 16

It will roll back the Space Launch System from the launch pad for various repairs, further delaying the rocket’s long-anticipated first launch.

NASA Did Not State

When the vehicle would go back from Launch Complex 39B, where it rolled out March 17, to the VAB.

The Agency...

Said it will hold a briefing April 18 about its plans.

The Agency Added

It would use the time in the VAB to repair a faulty helium check valve in the SLS’s upper stage

And A Hydrogen Leak Detected

Shortly after starting to load liquid hydrogen into the rocket’s core stage during the April 14 attempt.

It Was The First Time That... 

Controllers had reached that stage of the countdown after technical problems halted two previous attempts before liquid hydrogen could start loading.

NASA Virtually Teleports  ‘Holoportation’

Doctor In Space With