STS-400

[4] It was planned that after the STS-125 mission in October 2008, Launch Complex 39B would undergo the conversion for use in Project Constellation for the Ares I-X rocket.[4] Several of the members on the NASA mission management team said at the time (2009) that single-pad operations were possible, but the decision was made to use both pads.[1][3] During the first, Grunsfeld would have depressurized on Endeavour in order to assist Gregory Johnson and Michael Massimino in transferring an EMU to Atlantis.[8] The damaged orbiter would have been commanded by the ground to deorbit and go through landing procedures over the Pacific, with the impact area being north of Hawaii.This also allowed NASA to continue processing LC-39B for the upcoming Ares I-X launch, as during the stand-down period, NASA installed a new lightning protection system, similar to those found on the Atlas V and Delta IV pads, to protect the newer, taller Ares I rocket from lightning strikes.However artwork was created for use by the mission team as an unofficial emblem by Mike Okuda, who also illustrated the official patch of STS-125.[12] As described by Paul F. Dye, Lead Flight Director of the mission, the emblem "adopts many of the elements seen in a rescue organization's patch - the square cross, bold letterers and border, and simple design.The first flight crew assigned to the mission created another, more humorous design depicting a St. Bernard with its traditional barrel of brandy replaced by the Hubble Space Telescope.
Atlantis (foreground) and Endeavour on LC-39A and LC-39B in 2008.
Diagram showing one of the proposals for crew and equipment transfers during STS-400.
The first STS-400 flight crew's unofficial patch
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