NASA and SpaceX have delayed Thursday’s planned launch of the Crew-11 mission to the International Space Station (ISS). The mission will mark the next exciting chapter in their partnership to support long-duration human spaceflight and cutting-edge research in low-Earth orbit.

The launch takes place on a milestone date, marking 20 years since the STS-114 space shuttle mission took off from Kennedy Space Center Pad 39B. The launch of Discovery on the STS-114 mission on July 26, 2005, marked the return to flight for the space shuttle after the Columbia tragedy investigation.